Weintraub says they found all the remains in a 12.5-foot-deep common grave on a sprawling farm in suburban Philadelphia.
DiNardo told authorities where their bodies are located in exchange for authorities taking the possibility of the death penalty off the table, Lang added.
The details were provided after one of Cosmo DiNardo's lawyers said Thursday that DiNardo had confessed to murdering the missing men, including a Maryland college student. Patrick, who was a year behind DiNardo at a Catholic high school for boys, was last seen on Wednesday, while the other three vanished on Friday.
Likewise, while there is no proof that any of the men have been harmed, "we are treating this as a criminal investigation until we know differently", the district attorney said. Cadaver dogs found the remains, and authorities are working to identify them, the district attorney said.
Asked if the four missing men could still be alive, Weintraub said, "I think it's very important to hang on to hope". Levittown Now reported that Dinardo was suffering from mental illness, which hypothetically could have disqualified him from gun ownership.
Many developments in the case have been made since they were reported missing, and DiNardo was named a "person of interest" early on in the investigation.
"I'm sorry", DiNardo said as he exited the Bucks County Courthouse on Thursday evening.
Sturgis' father said that Meo and his son went missing last week after being seen in the Solebury area, according to WPVI. DiNardo was arrested on Wednesday for allegedly trying to sellTom Meo's 1996 Nissan Maxima for $500. He was charged with theft and receiving stolen property after he tried to sell Meo's vehicle, a 1996 Nissan Maxima, to a friend for $500.
DiNardo had been held on a $1 million bond until Tuesday evening on an unrelated weapons charge.
Also on Monday, police began to focus their search on farmland owned by the DiNardo family in Solebury Township. "We are going to find something for sure".