Aug 18 (Reuters) - A man who claimed to be affiliated with a white supremacist group stabbed a black man in Olympia, the capital of Washington state, and told police he was lashing out at Black Lives Matter protesters, authorities said on Thursday.
The motive for the attack on Tuesday night "seems to be purely racial," Laura Wohl, an Olympia police spokeswoman, said in a telephone interview.
Daniel Rowe, 32, was held in jail in lieu of bail of $500,000 after he was arrested for assault in connection with the attack, Wohl said.
The 47-year-old black man and his white girlfriend, who is 35, had left a bar when Rowe approached them with a "weird" smile, according to a probable cause statement filed in court.
Rowe stabbed Stevenson with a 3-inch knife and accidentally cut the woman lightly, Wohl said.
After the assailant ran off, Stevenson chased him and sent him headlong into a car, according to the probable cause statement.
The victim was treated at a hospital and released, Wohl said.
Police said Rowe had several white supremacist tattoos including "Skinhead" and the word "Hooligan" draped in a Confederate flag, according to the probable cause statement, and claimed an affiliation with a white supremacist group.
Rowe, of Richland, Washington, told investigators he was angry about a recent protest in Olympia that left buildings tagged with anti-police graffiti, Wohl said.
He told investigators he knew law enforcement officers "couldn't hurt the black people on the street" and he would "continue the fight against all of the Black Lives Matter people," according to the probable cause statement.
Black Lives Matter has played a key role in U.S. protests over deadly police shootings of black men and women, which have led to a national debate over discrimination and excessive use of police force.
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FERGUSON, MO - AUGUST 17: Tear gas rains down on a woman kneeling in the street with her hands in the air after a demonstration over the killing of teenager Michael Brown by a Ferguson police officer on August 17, 2014 in Ferguson, Missouri. Despite the Brown family's continued call for peaceful demonstrations, violent protests have erupted nearly every night in Ferguson since his August 9, death. (Photo by Scott Olson/Getty Images)
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FERGUSON, MO - AUGUST 11: Police force protestors from the business district into nearby neighborhoods on August 11, 2014 in Ferguson, Missouri. Police responded with tear gas and rubber bullets as residents and their supporters protested the shooting by police of an unarmed black teenager named Michael Brown who was killed Saturday in this suburban St. Louis community. Yesterday 32 arrests were made after protests turned into rioting and looting in Ferguson. (Photo by Scott Olson/Getty Images)
ST LOUIS, MO - OCTOBER 12: A demonstrator protesting the killings of 18-year-olds Michael Brown by a Ferguson, Missouri Police officer and Vonderrit Myers Jr. by an off duty St. Louis police officer gets help after being maced by police on October 12, 2014 in St Louis, Missouri. The St. Louis area has been struggling to heal since riots erupted in suburban Ferguson following Brown's death. (Photo by Scott Olson/Getty Images)
PHILADELPHIA, PA - DECEMBER 3: A demonstrator cries while gathering in Philadelphia to protest the Eric Garner grand jury decision during a Christmas Tree lighting ceremony at City Hall December 3, 2014 in Philadelphia, Pennsylvania. Organizers called for the demonstration after a grand jury in the Staten Island borough of New York City declined to indict the police officer who used a chokehold on Garner, resulting in his death. (Photo by Mark Makela/Getty Images)
FERGUSON, MO - NOVEMBER 25: Police confront demonstrators during a protest on November 25, 2014 in Ferguson, Missouri. Yesterday protesting turned into rioting following the grand jury announcement to not indict officer Darren Wilson in the Michael Brown case. Brown, an 18-year-old black man, was killed by Darren Wilson, a white Ferguson police officer, on August 9. At least 12 buildings were torched and more than 50 people were arrested during the night-long rioting. (Photo by Scott Olson/Getty Images)
Neal Blair, of Augusta, Ga., stands on the lawn of the Capitol building during a rally to mark the 20th anniversary of the Million Man March, on Capitol Hill, on Saturday, Oct. 10, 2015, in Washington. Thousands of African-Americans crowded on the National Mall Saturday for the 20th anniversary of the Million Man March. (AP Photo/Evan Vucci)
Black Lives Matter supporters embrace after Minneapolis police poured water to extinguish an encampment fire as they continued their protest, Wednesday, Nov. 18, 2015, outside the Fourth Precinct in Minneapolis. The fatal shooting of Jamar Clark, an unarmed black man by a Minneapolis police officer, has pushed racial tensions in the city's small but concentrated minority community to the fore, with the police precinct besieged by a makeshift encampment and many protesters. (AP Photo/Jim Mone)
A spray painted message of âBlack Lives Matterâ was painted on a monument to former Confederate President Jefferson Davis on Monument Avenue in Richmond, Va., Thursday, June 25, 2015. The vandalism comes after a mass shooting in Charleston South Carolina has sparked a nationwide debate on the public display of Confederate imagery. (AP Photo/Steve Helber)
FILE - In this March 12, 2015 file photo, police shine a light on a helmet as they investigate the scene where two police officers were shot outside the Ferguson Police Department in Ferguson, Mo. The one year anniversary of the shooting of Michael Brown, which sparked months of nationwide protests and launched the "Black Lives Matter" movement, is on Sunday, Aug. 9, 2015. (AP Photo/Jeff Roberson, File)
FILE - In this Aug. 20, 2014 file photo taken with a long exposure, protesters march in the street as lightning flashes in the distance in Ferguson, Mo. The one year anniversary of the shooting of Michael Brown, which sparked months of nationwide protests and launched the "Black Lives Matter" movement, is on Sunday, Aug. 9, 2015. (AP Photo/Jeff Roberson, File)
A protester has some words with Minneapolis police officers on bikes as a Black Lives Matter protest continued, Wednesday, Nov. 18, 2015, at the Minneapolis Police Department's Fourth Precinct in Minneapolis. It was the fourth day of protests of the killing of 24-year-old Jamar Clark, an unarmed black man, by a Minneapolis police officer. (AP Photo/Jim Mone)
Black Lives Matter activist DeRay McKesson leaves the Baton Rouge jail in Baton Rouge, La. on Sunday, July 10, 2016. McKesson, three journalists and more than 120 other people were taken into custody in Louisiana over the past two days, authorities said Sunday, after protests over the fatal shooting of an African-American man by two white police officers in Baton Rouge. (AP Photo/Max Becherer)
Jamine Clark points to the name of his brother, Jamar Clark, on an upside-down flag bearing names of people killed at the hands of police outside the Minneapolis Police Department's Fourth Precinct, Tuesday, Nov. 17, 2015, in Minneapolis. Black Lives Matter demonstrators have set up an encampment at the precinct which is near the site of the Sunday shooting of Jamar Clark by a Minneapolis police officer. Clark has been taken off life support. (AP Photo/Jim Mone)
BLOOMINGTON, MN - DECEMBER 20: Thousands of protesters from the group 'Black Lives Matter' disrupt holiday shoppers on December 20, 2014 at Mall of America in Bloomington, Minnesota. (Photo by Adam Bettcher/Getty Images)
FILE - In this Dec. 8, 2014 file photo, Cleveland Cavaliers' LeBron James wears a T-shirt reading "I Can't Breathe," during warms up before an NBA basketball game against the Brooklyn Nets in New York. Celebrities have long played a significant role in social change, from Harry Belafonte marching for civil rights to Muhammad Aliâs anti-war activism. James and other basketball stars made news in 2014 when they wore T-shirts to protest the death of Eric Garner. (AP Photo/Frank Franklin II, File)
A demonstrator chants during a rally in downtown Manhattan in New York, Saturday, Dec. 13, 2014, during the Justice for All rally and march. In the past three weeks, grand juries have decided not to indict officers in the chokehold death of Eric Garner in New York and the fatal shooting of Michael Brown in Ferguson, Mo. The decisions have unleashed demonstrations and questions about police conduct and whether local prosecutors are the best choice for investigating police. (AP Photo/John Minchillo)
Parents of Michael Brown, Michael Brown Sr. and Lesley McSpadden listen to a speaker during a rally, Sunday, Aug. 17, 2014, for their son who was killed by police last Saturday in Ferguson, Mo. Brown's shooting in the middle of a street, following a suspected robbery of a box of cigars from a nearby market, has sparked a week of protests, riots and looting in the St. Louis suburb. (AP Photo/Charlie Riedel)
A police officer stands over activists, demanding justice for the death of Eric Garner, as they stage a 'die-in' during rush hour at Grand Central Terminal in the Manhattan borough of New York on December 3, 2014. A New York City grand jury on Wednesday returned no indictment against a white police officer who used a chokehold on an unarmed black man who died as police tried to arrest him for illegally selling cigarettes, local media reported. The grand jury in the city's borough of Staten Island decided against criminal charges for New York police officer Daniel Pantaleo in the death of Eric Garner. The deadly encounter on July 17 was captured on a video that quickly spread over the Internet and helped fuel debates about how U.S. police use force, particularly against minorities. REUTERS/Adrees Latif (UNITED STATES - Tags: CIVIL UNREST POLITICS TPX IMAGES OF THE DAY TRANSPORT)
A man protesting the shooting death of Alton Sterling is detained by law enforcement near the headquarters of the Baton Rouge Police Department in Baton Rouge, Louisiana, U.S. July 9, 2016. REUTERS/Jonathan Bachman TPX IMAGES OF THE DAY
Pastor Charles Burton lies on the driveway at the Ferguson, Mo., police station as a chalk drawing is made as a memorial to Michael Brown, Monday, Oct. 13, 2014. Activists planned a day of civil disobedience to protest Brown's shooting in August and a second police shooting in St. Louis last week. (AP Photo/Charles Rex Arbogast)
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Rowe appeared in court on Wednesday on proposed charges of assault in the second degree and malicious harassment, which in Washington state is used for hate crimes, according to the Thurston County Prosecuting Attorney.
A prosecutor was expected to file formal charges soon.
Rowe's public defender could not be reached for comment. (Reporting by Alex Dobuzinskis in Los Angeles; Editing by Jeffrey Benkoe)