A Quiet Drink Turns Into An Invitation to Disaster Amityville--John Altieri was sitting in Henry's Bar on Merrick Road around 6:30 last night when Ronald J. DeFeo Jr. burst through the door. "He was hysterical," Altieri said later. "He told me someone shot his father and mother." Altieri, DeFeo and three other men at the bar piled into DeFeo's car and drove several hundred yards down Ocean Avenue to the DeFeo home, Altieri said. Alone, he said, he walked through the front door and up the circular staircase to the second floor. In the master bedroom, Louise and Ronald DeFeo Sr. lay dead in sleeping positions on the bed, Altieci said. DeFeo Sr. was shot in the center of his back, he said. Louise DeFeo was covered to her neck with blankets, he said, and he could not see her wound. Altieri turned his head away and looked across the hall. There, in another bedroom, lay two boys. "The little one [John, 9] was in pajamas and had blood all over him; I couldn't see where the [bullet] hole was," Altieri said. In another bed lay 11-year-old Mark, clad only in shorts and shot, Altieri said, in the center of the back. The door to the third bedroom on that floor, where 13-year-old Allison lay dead, was closed, Altieri said. He didn't enter. Nor did he climb the steps to the third floor where 18-year-old Dawn also lay dead. He dashed downstairs, he said, where he was joined by the three other acquaintances. Ronald Jr., he said, remained in the driveway in a state Altieri described as "hysterical." Police were called, and after county and village police arrived, Altieri said, he was questioned for about three hours. At about midnight last night, Altieri was back in Henry's, drinking heavily and complaining about the questioning he had undergone, both by police and reporters. Shortly after midnight, a young woman walked in. Apparently believing she was a reporter, Altieri said to a companion, "Let's get out of here before somebody else comes in and asks us more questions." Then the two left.