In a confession to detectives and prosecutors last week in county office building in Doylestown, Cosmo DiNardo, 20, of Bensalem, claimed to have killed two more people several years ago.

LevittownNow.com confirmed through sources Friday and again Monday that DiNardo made his statement but it lacked exact details that could help investigators substantiate it. In the past, DiNardo was known to make claims that could not be substantiated by friends and appears to have a had a bombastic personality on social media.

The Bucks County District Attorney’s Office said DiNardo’s statements last week were “investigative material” and something they “would not discuss publicly.”

“Matt Weintraub has said consistently that if allegations of other crimes in this matter are brought to our attention, they will be investigated,” said Larry King, a spokesman for the district attorney’s office.

The claim was first made public Monday in a New York Times article that incorrectly attributed the information to the district attorney’s office. The newspaper furthered what LevittownNow.com was told through sources and stated DiNardo said the alleged killings happened in Philadelphia when he was 15.

A spokesperson for the Philadelphia District Attorney’s Office said they had no information as of Monday morning on DiNardo’s claim that he committed homicides in the city.

DiNardo, who has mental health issues, was charged with homicide, robbery and related offenses in connection with the deaths of Dean Finocchiaro, 19, of Middletown Township; Thomas Meo, 21, of Plumstead Township; Jimi Taro Patrick, 19, of Newtown Township; and Mark Sturgis, 22, of Pennsburg, Montgomery County.

Sean Kratz, 20, of Philadelphia, was charged with homicide, robbery and related offenses in connection with the deaths of three of the men.

According to prosecutors, the four young men were killed two weeks ago on a 68-acre DiNardo family property in Solebury. Patrick’s body was concealed in a wooded area with rough terrain and the other three men were thrown in a metal container that was converted into a pig roaster before being buried 12 feet underground.

DiNardo and Kratz awaiting their preliminary hearings in prison without bail.

This news organization was not able to immediately reach DiNardo’s defense attorney’s for comment.