BREAKING: Report of Suspicious Device Prompts Partial Evacuation at Ontario International Airport

Additional Victims Sought After Man Is Killed While Attempting to Sell $2,000 Gold Chain in Montebello

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.

After a 25-year-old man was arrested for allegedly gunning down another man when the two met regarding the sale of a $2,000 gold chain, investigators began searching for additional victims of the robber.

The Montebello Police Department provided this photo of Sean Matthew Garcia, 25, after he was arrested on Sept. 29, 2015, for allegedly shooting and killing a man during an attempted robbery.

The Montebello Police Department provided this photo of Sean Matthew Garcia, 25, after he was arrested on Sept. 29, 2015, for allegedly shooting and killing a man during an attempted robbery.

Police say Sean Matthew Garcia and victim Brian Lee Gomez, a 28-year-old Long Beach resident, first communicated through OfferUp.com and agreed to meet in the area of 1620 Neil Armstrong St. on Monday regarding the sale of a gold chain.

During the meeting, Gomez, along with his wife, were approached by Garcia and asked to enter a building, Montebello Police Department Chief Kevin McClure said during a Wednesday news conference.

Gomez refused and Garcia recovered an assault rifle from a nearby bush, he said.

Surveillance footage shows an armed man giving chase in an apparent parking lot. McClure says Gomez attempted to flee, but Garcia caught up to his victim and shot the man dead in front of his wife.

The gold chain was never retrieved by the robber, McClure added.

“There was no intent to ever purchase the gold chain. I think the intent was to rob the victim of the gold chain using the weapon as force,” he said.

The incident was further described as an “ambush.”

In less than 24 hours, Garcia was arrested, thanks in part to OfferUp.com.

“They were a huge part of helping us solve this crime,” McClure said. “They participated right from the get-go. They were very, very cooperative and we thank them for that.”

Garcia, 25, was arrested on Tuesday at his Montebello home, where “significant evidence” was located.

The evidence included assault rifle parts believed to be from the weapon used to kill Gomez, according to a police news release.

Garcia was expected to be booked on murder and robbery related charges, McClure said.

During the investigation, police also discovered a second potential victim.

That man’s robbery occurred in the same location as Monday’s incident and went unreported, McClure said. Additional information was not given due to the ongoing investigation.

Montebello police were looking for additional victims and asked anyone with information to contact the department’s investigation’s bureau at 323 887-1313, ext. 262.