Isaias Raziel Ochoa, 19, died at the scene of the predawn shootout, which erupted in the 2100 block of Rebecca Way in Lemon Grove following a road chaseThe events that led to Ochoa’s death began shortly before 1:30 a.m., when a patrol officer spotted a gray Ford sedan with an open door stopped at a green light near Fletcher Parkway and Baltimore Drive in La Mesa, according to police.While approaching to investigate, the officer heard a scream from inside the car, after which it sped away, Nelson said.The officer gave chase, following the vehicle into Spring Valley, where a sheriff’s sergeant joined the pursuit. After entering Lemon Grove and winding up on a dead-end street just west of state Route 125, the Ford rolled to a stop, and Ochoa jumped out and ran off along with two companions.Ochoa climbed over a nearby fence and fled onto a hillside behind a home, a short distance from the abandoned car. Officers then heard gunshots from his direction, Nelson said.At that point, a San Diego police officer who had been dispatched to aid in the chase released a service dog, which charged Ochoa on the embankment and began biting him.While struggling with the attacking animal, Ochoa allegedly began shooting a pistol, prompting the sheriff’s sergeant and three officers to return fire.One of Ochoa’s cohorts, meanwhile, had escaped. The other was taken into custody near the site of the shootout