DiNardo told police where to find 19-year-old Loyola University of Maryland student Jimi Taro Patrick, who was a year behind DiNardo at Holy Ghost Prep School near Bensalem, and agreed to plead guilty to four counts of first-degree murder.
Two days later, Dean Finocchiaro, 19 years old, Mark Sturgis, age 22, and Thomas Moe, 21 years, all of the inhabitants of the same area of the country, which vanished in their turn.
DiNardo, 20, then burned the bodies - three of them inside a drum - at his family's farm in Solebury Township, about 30 miles (48 kilometers) north of Philadelphia, the person said. Dinardo picked up Kratz, his cousin, and the two drove to Finocchiaro's house and planned to rob him, the affidavit states.
On Friday, Dinardo, 20, and his cousin, Sean Kratz, also 20, were charged with homicide, conspiracy and abuse of a corpse as well as with robbery and a weapons charge.
An attorney for DiNardo's parents said they sympathized with the families of the men and were cooperating in the investigation.
The defendants are scheduled for a July 31 preliminary hearing before Snow.
Police were back at the farm Thursday, digging away in the dust and the 90-degree-plus heat and using plywood to shore up the deep, tent-covered trench that they excavated at the spot where Weintraub said dogs managed to "smell these poor boys 12 1/2 feet below the ground". "Although we've sped through this week and we've accomplished so much, we have so much more to do to bring justice in this case".
The source also said one man was killed on July 5 and the other three were killed July 7. Weintraub will lay out the case in detail Friday afternoon, according to a spokesman.
"I hope that I'm never in their shoes", he said of the relatives, who maintained a daily vigil at the search site.More news: Finance Ministry seeks report from Sebi over NSE technical failure
More news: Trump offers help to parents of sick baby
More news: Tour de France: Démare wins sprint as Cavendish crashes
Copies of charging documents in the case are attached below.
"I don't know what convinced him (to confess)".
Weintraub confirmed that the remains of all four men have been found.
Dinardo is also accused in the fatal shootings of Jimi Patrick and Dean Finocchiaro. He is charged in the deaths of all four men.
"They're tenderly, painstakingly, reverentially recovering the remains of people they do not even know", Weintraub said. Patrick's murder occurred when DiNardo agreed to sell him four pounds of marijuana for $8,000. When Patrick only produced $800, court documents note, Dinardo instead offered to sell Patrick a shotgun for that amount and walked him to "a remote part of the property" where Dinardo instead shot and killed Patrick with a 22-calibur rifle.
DiNardo allegedly said he gave Kratz a.357 handgun before driving all three to the DiNardo farm.
Cosmo Dinardo seen being escorted to a police vehicle on Thursday after his apparent confession. Meo, in his Maxima, with Sturgis, followed DiNardo to his parent's property on the 2800 block of Aquetong Road.
Wrapped in blue tarp, Finocchiaro's body was removed from the barn with a backhoe and placed into a metal tank that DiNardo referred to as the "pig roaster". DiNardo was released Tuesday evening to his parents' home in Bensalem while Federal Bureau of Investigation agents sifted through mounds of dirt from a deep pit they dug on the farm about 20 miles away, and police cadets combed the vast cornfields nearby. DiNardo's bail was set at $5 million in cash, the highest that Bucks County Magisterial District Judge Maggie Snow has ever set, she said.
"Cosmo isn't your buddy Dean missing aren't you anxious?" one person in the group said.