Police and firefighters line up for the calling hours for Webster firefighters Michael Chiapperini and Tomasz Kaczowka in West Webster, New York, on December 29. Chiapperini and Kaczowka were killed by, William Spengler, 62, who wounded two others in an ambush in upstate New York and left a typewritten note saying he planned to burn down his neighbourhood and start "killing people," authorities said on Tuesday. Reuters/Carlo Allegri