WEBSTER, N.Y. (AP) — The ex-con turned sniper who killed two firefighters wanted to make sure his goodbye note was legible, typing out his desire to “do what I like doing best, killing people” before setting the house where he lived with his sister ablaze, police said.

Police Chief Gerald Pickering said Tuesday that the 62-year-old loner, William Spengler, brought plenty of ammunition with him for three weapons including a military-style assault rifle as he set out on a quest to burn down his neighborhood just before sunrise on Christmas Eve.