The friend, Kent Mawhinney, is also charged in the case, with conspiracy to commit murder.
According to Mawhinney's arrest warrant, two members of the Windsor Rod and Gun Club, Jay Lawlor and Lee McKay, were hunting there on May 18, 2019, when they happened upon a 2-foot-wide, 6-foot-long hole covered with barbecue grill grates.
Lawlor found a blue tarp and two unopened bags of lime inside the pit, the warrant said. McKay asked him, "What's the lime for?" Lawlor said, "For trying to rid of a body."
Lawlor later told police that the hole was, "One hundred percent a human grave." But the men didn't know of anyone who was missing, so they moved on.
In early June, Lawlor went back to the club "and found the hole had been filled and covered — "as neat as a pin" — with leaves and sticks so that it wasn't apparent that a hole had been there," according to the warrant.
Related: Vintage crime photos from the Daily News
Vintage crime photos from the Daily News
Vintage crime photos from the Daily News
UNITED STATES - MARCH 03: Confessed Slayer Enraged. William Patrick Farrell screams as he lunges toward fotog taking his picture in van outside Police Headquarters. Police say that Farrell, 25, father of two, reenacted for them the slaying of NYU coed Ann Yarrow last month. Farrell, a patient at Bellevue Hosipital twice before, was ordered to Bellevue again. (Photo by Al Amy/NY Daily News Archive via Getty Images)
UNITED STATES - MARCH 25: Leon Liss, Barney Mortillaro, Milton (Shuffles) Goldberg, Louis Liss, Pasquale Chicarelli and gang leader Richard Reese Whittemore (l. to r.) in a police lineup, after they were implicated in a gem holdup on W. 48th St. (Photo by NY Daily News Archive via Getty Images)
UNITED STATES - JANUARY 09: Theodore A. Clement in the back of a police paddy wagon after allegedly shooting a man during a poker game. (Photo by Al Amy/NY Daily News Archive via Getty Images)
UNITED STATES - JANUARY 20: Isadore Strauss in jail cell at police headquarters after his arrest for murder and robbery in connection with Whittemore gang job. (Photo by Paul Levine/NY Daily News Archive via Getty Images)
UNITED STATES - NOVEMBER 04: Abe (Kid Twist) Reles (center) in a police mug shot. (Photo by NY Daily News Archive via Getty Images)
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UNITED STATES - SEPTEMBER 01: Mass murderer Harry F. Powers, the Butcher of Clarksburg, tells a detective about the details of his grisly murders in Clarksburg, W.Va. (Photo by NY Daily News Archive via Getty Images)
UNITED STATES - OCTOBER 19: Nela Bogacki, alias Nella Bogart, madam of the 'Continental call girl ring,' handcuffed to Salema Hontover after being seized by the F.B.I. Both are to be deported for illegal entry. (Photo by Al Amy/NY Daily News Archive via Getty Images)
UNITED STATES - OCTOBER 25: The body of Albert Anastasia - who ran Murder, Inc., a gang of hired killers for organized crime, in the late 1930s - lies on the barbershop floor at the Park Sheraton Hotel, Seventh Avenue and West 55th Street, soon after his murder by two gunmen at 10:20 A.M. (Photo by NY Daily News Archive via Getty Images)
UNITED STATES - APRIL 20: A manacled LeRoy Luscomb is charged with first degree murder in the killing of his wife with a deer rifle. His wife is on the bed in the rear of the photo., (Photo by NY Daily News Archive via Getty Images)
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UNITED STATES - DECEMBER 16: Driver and bodyguard Thomas Bilotti lies on the street next to car after he and crime boss Paul Castellano were shot to death outside East Side steakhouse. (Photo by Thomas Monaster/NY Daily News Archive via Getty Images)
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He reported the finding to police at the end of the month. Mawhinney founded the club, but had ceased to be a member about five years ago. However, Lawlor knew that Mawhinney had contacted another member in March or April, expressing that he wanted to rejoin. He was given a key, and then stopped asking about renewing his membership, the warrant says.
Investigators went to the club to investigate the hole, and found it, but there were no signs of a body inside.
Police spoke with Mawhinney on two occasions. While Dulos' girlfriend, Michelle Troconis, who was also charged Tuesday with conspiracy to commit murder, told police she saw him in Fotis Dulos' house on the day Jennifer Dulos went missing, Mawhinney denied he saw or had contact with Fotis Dulos.
Investigators pointed out that phone records indicate Dulos called Mawhinney on May 24. Still, he denied recalling any contact with his friend, claiming he had fallen on May 25 and suffered a concussion. He also had to replace his cellphone after breaking his the one he had on May 24 in the fall, he told police.