Meo's grandfather, Chuck Meo, told an NBC News producer that crews found the remains under a blue tarp after lifting out a propane tank, WCAU-TV reported.
"This was a homicide", Weintraub said, without specifying how Finocchiaro died. Since Saturday, the effort, aided by the Federal Bureau of Investigation, has focused largely on a 90-acre farm in Solebury Township, where authorities have used dogs, ATVs, and heavy construction equipment to dig up evidence. The other remains remained unidentified when Weintraub gave his next update Thursday morning. Jimi Tar Patrick, 19, was last seen July 5.
Of note, Fox Philadelphia reported Finocchiaro having been arrested multiple times in the past.
He had two pending criminal cases in Bucks County Court stemming from arrests earlier this year, involving possession of drug paraphernalia, simple assault, conspiracy and harassment. The missing men are 22-year-old Mark Sturgis, 21-year-old Tom Meo and 19-year-old Jimi Tar Patrick.More news: Fresh Kid Ice dead
There were also developments on Wednesday surrounding 20-year-old Cosmo DiNardo, who has been described as a person-of-interest in the case. A magisterial district judge ordered him held on $5 million cash bail, saying he found that DiNardo "is a grave risk". Authorities said DiNardo attempted to sell the vehicle on July 9, for $500.
Like Meo, Sturgis reportedly first met DiNardo when DiNardo was looking to sell marijuana. "I'll tell you that he was normal up until past year", the friend said. Meo, his friend said, is "the most good-hearted, loyal, hard-working young man I've ever met in my life".
'Everybody you talk to about this guy, you hear he's mentally unstable'. There are human remains of others in the grave, but police do not yet know how many.
High-profile attorney Fortunato Perri Jr., who is representing the DiNardo parents, had no comment for the gaggle of reporters and photographers waiting for him.
Police have announced the arrest of a Bucks County, Pennsylvania man in connection with a string of disappearances in the area. Both young men didn't go to work on Saturday, police said. The vehicle was recovered Sunday at a property owned by the Dinardos, the district attorney said. Several police cars and a backhoe are here.More news: 1 of 3 victims in shooting is suspect's ex-wife
Federal Bureau of Investigation agents sifted through mounds of dirt from a deep pit on the farm and police cadets combed vast cornfields nearby.
At least some of the missing men are friends, but it's unclear how well they knew DiNardo, if at all.
The body has been identified as 19-year-old Dean Finocchiaro.
In the gun charge he still faces, DiNardo is accused of illegally possessing a shotgun and ammunition because of a previous involuntary commitment to a mental health institution.
He said DiNardo, 20, remains a "person of interest" in the case. He had a few other brushes with the law since turning 18 for traffic violations and other minor infractions.More news: John Podesta responds to Donald Trump's Twitter attacks: "Get a grip man"