The 16-minute saga started when Officer Kevin Corcoran, 33, a nine-year veteran of the force, was patrolling in his SUV near 13th and Lombard streets at about 2 a.m. last March 31, according to the District Attorney's Office. A pedestrian, part of a group of people on the sidewalk nearby, yelled to Corcoran that he'd made an illegal turn, prompting the officer to get out of his car and yell at them, according to the D.A.'s Office.