Neil Entwistle visited Web sites describing ways to kill people and methods to commit suicide in the days before his wife and 9-month-old daughter were found shot to death in their Massachusetts home, according to newly released court documents.
The search warrant documents also provide new details of Entwistle's version of events. Two days after the Jan. 20 slayings, Entwistle called a Massachusetts police officer from England and told him that he had been running errands for about four hours and upon returning home, he had found his wife, Rachel, and daughter, Lillian, dead in bed, according to the documents.
"He pulled back the comforter, saw his wife was pale, saw blood on the baby and that the baby had been shot, and they were dead," the documents read. "[He] went downstairs, grabbed a knife from the kitchen, and considered killing himself, but then put it down because it would hurt too much."
Entwistle said he drove to his father-in-law's house to get a gun to shoot himself and when he couldn't get in, he went to the airport and flew to his parents' house in England.
The Rev. Frank Mackenzie, who was Rachel's' priest, said Rachel's relatives had happily accepted Neil as part of the family.
"He is somebody that they loved, somebody that they had respected, somebody that they had given themselves to," Mackenzie said. "I really don't know what happened. Someone snapped some place."
Entwistle was secretive about his finances, according to court documents. He allegedly told his wife that he had plenty of money stashed in offshore bank accounts when in reality investigators say he was falling deeper and deeper into debt.
"This debt … appears to have caused strain in their relationship … which gave Neil Entwistle a motive to murder his wife and child," the documents say.
Entwistle also expressed "a dissatisfaction with his sex life … and conducted an Internet search for escort services."
The affidavit said that Entwistle's father-in-law had taken him target shooting with a .22-caliber weapon in the past, and that Entwistle knew where the guns were stored. The murder weapon was the same caliber.
The documents also reveal baby Lillian had "indications of trauma" -- contusions to her left eye, nose and mouth, and blood in her nostrils.
Entwistle is expected to return to the United States this week.