WATERTOWN, Conn.—A UPS truck driver died after an assault on Tuesday in Connecticut, and authorities are searching for a suspect. State troopers initially responded to a call about an accident involving a UPS truck in Watertown on Tuesday evening. They found the driver had been assaulted, and medics took him to a hospital, where he died. The nature of his injuries wasn’t clear, nor was a motive for the assault. Connecticut State Police did not identify the driver. Authorities are searching for Elijah David Bertrand, who they say is 19 years old.