WATERTOWN, Conn. (AP) — A UPS employee accused of fatally assaulting a co-worker he was helping deliver packages told police he stabbed the man before fleeing into the woods, according to an arrest warrant released Thursday. When he was taken into custody Wednesday afternoon by state troopers at a gas station in Plymouth, Elijah David Bertrand, 19, of Bristol, asked officers, “What took you guys so long to find me,” according to the warrant, posted online by the Waterbury Republican-American. Bertrand was arraigned Thursday on murder charges, accused of killing UPS driver Nathan Burk, 28, of Waterbury. The arrest warrant said Bertrand was working as Burk's “helper/runner” on Tuesday, the day of the assault.