The man who callously lured firefighters to their deaths in a blaze of gunfire left a typed up note saying that he wanted to burn down the neighbourhood and 'do what I like doing best, killing people.'

William Spengler, 62, armed himself with three weapons, including a Bushmaster assault rifle used by Sandy Hook Elementary shooter Adam Lanza and set his house afire to lure first responders into a death trap.

Two firefighters were shot dead and two others are hospitalized. Spengler killed himself as seven houses burned around him Monday.