WEBSTER, N.Y. — The ex-con who lured two firefighters to their deaths in a blaze of gunfire left a rambling typewritten note saying he wanted to burn down the neighborhood and ‘‘do what I like doing best, killing people,’’ police said Tuesday as they recovered burned human remains believed to be the gunman’s missing sister.
Police Chief Gerald Pickering said 62-year-old William Spengler, who served 17 years in prison for the 1980 hammer slaying of his grandmother, armed himself with a revolver, a shotgun and a military-style rifle before he set his house afire to lure first responders into a death trap before dawn on Christmas Eve.
‘‘He was equipped to go to war, kill innocent people,’’ Pickering said.
The rifle he had was a military-style .223-caliber semiautomatic Bushmaster rifle with flash suppression, the same make and caliber weapon used in the elementary school massacre in Newtown, Conn., Pickering said.
The chief said police believe the firefighters were hit with shots from the rifle given the distance but the investigation was incomplete.
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