Investigators are learning more about the shooting at the scene of a Christmas Eve fire in upstate New York that killed two firefighters and wounded two others.
FOX News Radio's Ron Flatter reports:
The gunman who torched his neighborhood in suburban Rochester, New York before his murder-suicide left behind a chilling message.
(Pickering) "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."
Webster, New York Police Chief Gerald Pickering reading the note left by ex-con William Spengler. Officers say Spengler shot firefighters, killing two of them. Later, police found a body at Spengler's house.
(Pickering) "The assumption is that it is the shooter's sister."
The 62-year-old Spengler had previously served prison time for killing his grandmother.
Ron Flatter, FOX News Radio.
WATCH more on the shooting of NY firefighters: