New York Shooter Left Terrifying Note

“What I like doing best — killing people.

Image by Monroe County Sheriff's Department / AP

The convicted killer who shot two firefighters dead on Christmas Eve day left a rambling note laced with hatred for his family and his neighbors, police said.

"I still have to get ready to see how much of the neighborhood I can burn down and do what I like doing best -- killing people," William Spenger, 62, wrote, according to CNN.

Spengler had 17 years in prison for manslaughter for killing his grandmother with a hammer in 1980, according to the Associated Press. He shot the firefighters with the same model of semi-automatic rifle used in the Newtown, Conn. massacre earlier this month.

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