Body of teen gang member found outside abandoned psych hospital

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BRENTWOOD, Long Island (WPIX) — A body found in the woods at the site of an abandoned psychiatric hospital, where multiple other remains have been found in recent months, has been identified as a teenage gang member, authorities on Long Island said Thursday.

Jose Pena-Hernandez, 18, of Brentwood, was discovered Oct. 17 on the grounds of Pilgrim Psychiatric Center on Crooked Hill Road, according to the Suffolk County Police Department.

He'd been reported missing June 13 and was a known member of the MS-13 gang, police said.

An autopsy will determine the teen's cause of death.

See more about the rise in gang activity in Brentwood, Long Island:

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BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) With a large amount of its country's natives living in the area, the El Salvadoran government has opened a diplomatic consulate to handle and advise it's citizens on eastern Long Island December 1, 2005 in Brentwood, New York. Many of the residing Latinos are undocumented illegal immigrants and can often face legal difficulties. Suffolk County Anti-Gang Police officers often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13, a violent street gang made up of El Salvadoran natives. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A sign board along a main thoroughfare advertises an El Salvadoran-owned food market in a strip mall on eastern Long Island December 1, 2005 in Brentwood, New York. Shops cater to the large Latin American and Mexican labor force in the area. Suffolk County Anti-Gang Police officers often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13, a violent street gang made up of El Salvadoran natives. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A Latin American native reads a Spanish language newspaper in a strip mall on eastern Long Island December 1, 2005 in Brentwood, New York. Shops cater to the large Latin American and Mexican labor force in the area. Suffolk County Anti-Gang Police officers often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13, a violent street gang made up of El Salvadoran natives. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A sign board along a main thoroughfare advertises an El Salvadoran-owned food market in a strip mall on eastern Long Island December 1, 2005 in Brentwood, New York. Shops cater to the large Latin American and Mexican labor force in the area. The name Morazan Restaurant comes from Morazan Province in eastern El Salvador. Suffolk County Anti-Gang Police officers often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13, a violent street gang made up of El Salvadoran natives. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - NOVEMBER 12: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Men of Latin American origin stand outside an El Salvadoran-owned food market on eastern Long Island November 12, 2005 in Brentwood, New York. Suffolk County Anti-Gang police officers often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13, a violent street gang made up of El Salvador natives. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - NOVEMBER 12: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A latino man walks into a El Salvadoran owned food market on November 12, 2005 in Brentwood, New York. The restaurants and markets cater to the large Latin American and Mexican labor force in the area. Suffolk County anti-gang policemen often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13 a violent street gang made up of El Salvador natives. The gang started in the 80's in Los Angeles, California. Civil war in El Salvador forced refugees to leave their country to the United States for safety and employment. Latino communities became infested with gang related crime and federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to their country of origin. Deportation has begun to backfire and helped spread gang violence across Central America and back into other parts of United States. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C. and other U.S. cities. Prisons in El Salvador have become nerve centers where deported leaders communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A awning displays a El Salvadoran owned restaurant in a strip mall on December 1, 2005 in Brentwood, New York. The name Morazan Restaurant comes from Morazan Province in easter El Salvador. The restaurants and markets cater to the large Latin American and Mexican labor force in the area. Suffolk County anti-gang policemen often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13 a violent street gang made up of El Salvador natives. The gang started in the 80's in Los Angeles, California. Civil war in El Salvador forced refugees to leave their country to the United States for safety and employment. Latino communities became infested with gang related crime and federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to their country of origin. Deportation has begun to backfire and helped spread gang violence across Central America and back into other parts of United States. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C. and other U.S. cities. Prisons in El Salvador have become nerve centers where deported leaders communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - NOVEMBER 11: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Anti-Gang Policemen check the identity documents of a local woman suspected of being a prostitute on November 11, 2005 in Brentwood, New York. The police noticed a group of young people congregating around a parked car in an area known for gang violence and drug dealing. The woman was known to the police and had recently been released after serving a seven-year jail sentence. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - DECEMBER 1: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) A restaurant advertises a Salvadoran-Mexican restaurant in a strip mall on December 1, 2005 in Brentwood, New York. The restaurants and markets cater to the large Latin American and Mexican labor force in the area. Suffolk County anti-gang policemen often stop in the numerous Salvadoran strip malls looking for suspected members of Mara Salvatrucha-13 or MS-13 a violent street gang made up of El Salvador natives. The gang started in the 80's in Los Angeles, California. Civil war in El Salvador forced refugees to leave their country to the United States for safety and employment. Latino communities became infested with gang related crime and federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to their country of origin. Deportation has begun to backfire and helped spread gang violence across Central America and back into other parts of United States. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C. and other U.S. cities. Prisons in El Salvador have become nerve centers where deported leaders communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - OCTOBER 29: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Police officers from the anti-gang unit check the trunk of a car for marijuana in a local shopping mall on eastern Long Island October 29, 2005 in Brentwood, New York. The two Afro-American men are associated with the 'Bloods,' a gang that sells crack, cocaine and marijuana for survival. A small bag of marijuana was found inside the car. The Bloods are rivals of Mara Salvatrucha 13 or MS-13, a Salvadoran gang. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - OCTOBER 29: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Police officers from the anti-gang unit check the trunk of a car for marijuana in a local shopping mall on eastern Long Island October 29, 2005 in Brentwood, New York. The two Afro-American men are associated with the 'Bloods,' a gang that sells crack, cocaine and marijuana for survival. A small bag of marijuana was found inside the car. The Bloods are rivals of Mara Salvatrucha 13 or MS-13, the Salvadoran gang. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. There are an estimated 10,000 MS-13 members inside the U.S. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - OCTOBER 29: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Police officers from the anti-gang unit check question two suspects about marijuana in a local shopping mall on eastern Long Island October 29, 2005 in Brentwood, New York. The two Afro-American men are associated with the 'Bloods,' a gang that sells crack, cocaine and marijuana for survival. A small bag of marijuana was found inside the car. The Bloods are rivals of Mara Salvatrucha 13 or MS-13, a Salvadoran gang. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - OCTOBER 29: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Police officers from the anti-gang unit check for tattoos and identity papers of possible gang members of Mara Salvatrucha 13 or MS-13 October 29, 2005 in Brentwood, New York. Many of the MS-13 members are in the U.S. illegally with false documents. The man being checked is from El Salvador and is not an MS-13 member. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. There are an estimated 10,000 MS-13 members inside the U.S. (Photo by Robert Nickelsberg/Getty Images)
BRENTWOOD, NY - OCTOBER 29: (US NEWS AND WORLD REPORT AND NEWSWEEK OUT) Suffolk County Police officers from the anti-gang unit check for tattoos and identity papers of a possible gang member of Mara Salvatrucha 13 or MS-13, October 29, 2005 in Brentwood, New York. Many of the MS-13 members are in the U.S. illegally with false documents. The man being checked is from El Salvador and is not an MS-13 member. Mara Salvatrucha 13 started in the 1980's in Los Angeles, California during the 12-year civil war in El Salvador, when refugees fled north for safety and employment. Once Latino communities were infested with violent and gang related crime, Federal Immigration officials began deporting gang members back to their country of origin. In the last 12 years, Immigration and Customs Enforcement (ICE) has deported over 50,000 criminals and gang members to Central America. Deportation began to backfire and helped spread gang violence across Central America and back into other parts of the U.S. Newly organized cells in El Salvador have returned to establish strongholds in metropolitan Washington, D.C., and other U.S. cities. Authorities say prisons in El Salvador have become nerve centers, where deported leaders from Los Angeles communicate with gang cliques across the United States. (Photo by Robert Nickelsberg/Getty Images)
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The gruesome discovery comes as police continue to probe the gang-related deaths of at least five others in the same neighborhood, shaken by the slayings.

A passerby found the body of 15-year-old Nisa Mickens on a Brentwood street on Sept. 13, one day before her 16th birthday. The next day, the body of her friend, 16-year-old Kayla Cuevas, was found in the backyard of a nearby home.

The pair had gone for a walk the night before and never returned.

Nine days after the girls' bodies were found, teams of investigators scouring the long-abandoned grounds of Pilgrim State found two human skeletons, police said in late September.

The remains were identified as Oscar Acosta, 19, who had been missing since May, and Miguel Garcia-Mora, 15.

All of the teens had attended the same high school in Brentwood.

Earlier this month, the body of Dewann Stacks was found lying lifeless on the road in front of 231 American Blvd., about a mile from where Mickens' body was found.

Police said Stacks, 34, most likely was killed by gang members.

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