Chula Vista Police assist a shooting victim
Chula Vista Police assist one of the shooting victims. Courtesy OnScene.TV

A man confronted his ex-girlfriend and her boyfriend Monday outside a Costco in Chula Vista, shot them both and then killed himself with the same gun, authorities reported.

The victims were putting groceries into a vehicle in a parking lot outside the warehouse store in the 1100 block of Broadway with the woman’s infant child next to them in a stroller when the assailant approached and began arguing with them shortly before 1 p.m., according to police.

During the angry exchange, the ex-boyfriend pulled a handgun and shot the couple several times each, then turned the weapon on himself, Lt. Dan Peak said. The baby was unharmed, the lieutenant told reporters.

Medics took the wounded to UCSD Medical Center in San Diego, where the suspected shooter was pronounced dead about an hour later, Peak said. The victims were admitted in serious condition and underwent emergency surgery.

The dead man’s name was not immediately available.

The shooting sent shoppers running out of the store. It was the second incident at a Costco in Southern California since Saturday.

Updated at 3:47 p.m. June 17, 2019

— From Staff and Wire Reports