Calandriello's bruised, frozen body was found stuffed in the trunk of his Cadillac Eldorado at a Holiday Inn on Route 100 in Lionville on Sunday night.
Matteo had worked as a golf-cart handler for Calandriello for five years at the Valley Forge Country Club, where Calandriello leased golf carts to patrons, according to investigators.
Calandriello died of a .22-caliber gunshot wound to the head, Chester County District Attorney James P. MacElree 2d said during a news conference yesterday. No weapon has been recovered, and the investigation is continuing, he said.
Interviews with several of Matteo's friends and evidence - including white cat hairs - led to the arrest, MacElree said.
Richard Winters, Matteo's attorney, declined to comment on the case last night. Matteo, wearing blue jeans and a denim jacket, spoke only to Scott before being led away by detectives.
Police said that in a deal arranged by Matteo, Matteo's friend "Rick" was supposed to meet Calandriello on Jan. 13 to sell him 54 golf carts for about $20,000. The alleged transaction apparently never took place, and Calandriello, a Bridgeport resident, was reported missing by friends two days later.
MacElree said that investigators had no evidence the golf carts existed and that Rick "may or may not be fictitious."
On Jan. 13, police said, Matteo called a friend to pick him up from the Holiday Inn about 3:30 p.m. The friend, Christopher Stanchina, told police that Matteo walked toward his car from the north end of the hotel parking lot - where Calandriello's car was later found, according to the arrest warrant.
Stanchina and another friend, Timothy Flynn, told investigators they sometimes went target shooting with Matteo, who used a .22-caliber rifle. Earlier this month, Matteo shot the gun from the window of a van while Flynn drove around, according to the warrant.
Flynn said that on Jan. 13, he drove to Matteo's house and saw him putting a large bundle of white sheets into a silver car in the driveway. The pair later drove to the Exton Square Mall, where Matteo pulled out a money clip containing about $1,100 in cash and paid Flynn part of a $190 debt Matteo owed him, the warrant stated.
Calandriello's girlfriend, Sarah Kessock, told police this week that Calandriello had told her that he, his friend Richard Ross and Matteo planned to meet Jan. 13 so he could buy the golf carts from Rick. Calandriello was to pay $15,000 to Rick, $1,000 to Matteo and an undisclosed amount to Ross, the warrant stated.
Matteo had made a similar golf-cart proposal to the victim in October, police were told. The incident ended with $9,000 of an alleged $10,000 payment stolen from Calandriello's car when he went to the Valley Forge Country Club to wait for Rick. Last week, Calandriello had told Matteo that he would have only $50 with him and that Ross would be "packing heat,"' according to the warrant.
Authorities have recovered about $15,000 of the $20,000 allegedly involved in the deal and are searching for the remainder.
In interviews with detectives, "Matteo denied being at the Lionville Holiday Inn, denied calling Stanchina for a ride and denied owning any type of firearms," the warrant stated.
At 5:50 p.m. Sunday, police found Calandriello's fully clothed body in the trunk of his car with a red plastic bag tied around his head. Several long white hairs were clinging to the black pants Calandriello was wearing.
MacElree said the hairs were consistent with hairs found on a white cat during a search of the house in which Matteo lives with his parents.