DOYLESTOWN, Pa. (CBSNewYork/AP) — A man who confessed to killing four Pennsylvania men who disappeared last week has been charged with four counts of homicide while a second man has been accused of participating in three of the slayings.

Prosecutors filed the charges Friday against Cosmo DiNardo and Sean Kratz. DiNardo faces four criminal homicide counts and Kratz three. They both face multiple counts of conspiracy, robbery and abuse of corpse.

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DiNardo’s lawyer admitted Thursday his client’s role in the four slayings. Kratz was arrested later the same day in Philadelphia.

All four victims were found buried on an 80-acre farm in Solebury, Pennsylvania, owned by DiNardo’s family.

DiNardo’s lawyer said his client is remorseful and led investigators to the men’s remains. On Thursday, DiNardo apologized when asked about the murders, CBS2 reported.

“Mr. DiNardo was promised by the district attorney that he will spare his life by not invoking the death penalty,” DiNardo’s attorney, Paul Lang, said.

Dean Finocchiaro, 19, Tom Meo, 21, and Mark Sturgis, 22, were discovered buried 12.5 feet deep under an old oil tank that had been converted into a cooker, Bucks County District Attorney Matt Weintraub said.

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The fourth victim, 19-year-old Jimi Taro Patrick, was found buried in a different area of the property about a half-mile away.

“It was described to us as being up on the top of a mountain and we found him, we found him where we were told we were going to find him and I don’t know if we would have ever,” Weintraub said. “We’d still be looking for Jimi Patrick had we not made this agreement.”

Investigators say DiNardo is an admitted drug dealer with a history of mental illness, CBS2 reported. DiNardo reportedly told investigators he felt cheated or threatened by the men during a drug deal.

 

Sean Kratz’s mom, Vanessa, declined to comment on arrest of her son.

Kratz is charged in the murders of Finocchiaro, Meo and Sturgis.

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(© Copyright 2017 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)