Andrea Castillo, Richard Winton, Victoria Kim and Sarah Parvini
POMONA, California — A man suspected of killing one Pomona police officer and wounding another was arrested Saturday afternoon after an overnight standoff at the apartment complex where the shooting occurred.
The dead officer has been identified as Gregory Casillas, 25, of Upland, according to Lt. Dave Smith of the Los Angeles County coroner’s office.
Officials said the incident began Friday night as a police pursuit that ended near the apartment complex when the suspect’s car crashed. The man ran from his vehicle and was followed by officers on foot.
He went into the apartment complex and barricaded himself inside one of the units. When officers arrived,…