The hours-long standoff began at 12:15 p.m. after a resident on Nichols Road in Southeast, N.Y., called someone to express suicidal thoughts and threaten to use violence against any police officers who came to his house, Putnam County Sheriff Donald Smith said in a news release. The Putnam Emergency Response Team, a special weapons and tactics unit comprised of sheriff’s deputies and officers from two local police departments, was dispatched to the area and immediately established a perimeter around the house, according to the report.