People across New York are being urged to go blue today in honor of a fallen State Trooper. The Police Benevolent Association says folks can pay tribute to 29-year-old Nicholas Clark by putting a blue bulb in their front porch light and sharing a photo of it online. Trooper Clark died earlier this month while responding to a call near Corning. Investigators say he was shot and killed by 43-year-old Steven Kiley, whose estranged wife called police after she says he was showing suicidal behavior. After shooting Trooper Clark, Kiley took his own life.