Authorities say they've found human remains in their search for four missing young Pennsylvania men and they can now identify one victim.
Local, state, and federal investigators have been working to solve the case since their mysterious disappearance. Patrick was last seen July 5.
He was one of four men to go missing last week, the other three being 22-year-old Mark Sturgis, of Pennsburg, 21-year-old Tom Meo, of Plumstead, and 19-year-old Jimi Tar Patrick, of Newtown Township and a student at Loyola University in Baltimore.
Weintraub has said there were indications that some or all of the men knew one another and investigators were working to confirm the extent of any connections.
An attorney representing the couple issued a statement earlier Wednesday saying they sympathize with the families of the missing men and are cooperating "in every way possible with the investigation".
Authorities have said they're looking at pursuing homicide charges against a 20-year-old man who was taken into custody Wednesday.
Finocchiaro's remains are the only ones to be identified thus far, but the remains of the others have been found.
Weintraub held a dramatic midnight news conference to announce that remains had been found buried deep underground after four days of searching a farm property north of Philadelphia.
From left: Jimi Patrick, Thomas Meo, Dean Finocchiaro, and Mark Sturgis. Kratz allegedly took part in three of the murders.
Eric Beitz, who said he had hung out with DiNardo in recent weeks, claimed to Philly.com that the killer routinely sold guns and on multiple occasions had talked "about weird things like killing people and having people killed".
The Bucks County District Attorney's office wrote in a Twitter message that Weintraub would hold a press conference at 11 a.m. ET (1500 GMT) on Friday.
Cosmo DiNardo, 20, confessed to the commission of or participation in four murders and agreed to plead guilty to four murder counts, attorney Paul Lang said outside court, where DiNardo had met with investigators. DiNardo said he had run out of ammunition, so he ran over Meo with the backhoe.
It's unclear how well the four knew DiNardo, if at all. Kratz told interviewers DiNardo "basically crushes him" with the backhoe (referring to Meo). In exchange for DiNardo's cooperation, Lang said, prosecutors would not seek the death penalty.
The men are believed to have been killed by Cosmo DiNardo, a schizophrenic from Pennsylvania, in relation to drug deals.
One source reportedly says the murders happened because DiNardo felt "cheated" after several drug deals. DiNardo picked up Meo and Sturgis, then drove them back to the Solebury farm where Kratz was waiting.
DiNardo also told detectives he agreed to sell Finocchiaro a quarter-pound of marijuana for about $700 on July 7.
DiNardo was arrested on 10 July at his home for owning a gun he was not allowed to possess because of his previous involuntary committal to a mental health facility.
Patrick and Cosmo Dinardo, whose parents own the farmland, graduated from Holy Ghost Preparatory School a year apart from each other, school spokesman Bill Doherty said.