BY , KTLA.com

A security guard who was stabbed and killed at a Sylmar grocery store on Sunday by a man allegedly attempting to steal beer has been identified.

Joe Lopez, 28, is seen in a photo his uncle provided to KTLA.

The guard has been identified by an uncle as 28-year-old Joe Lopez.

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San Fernando police described the man who allegedly fatally stabbed Lopez outside a Food 4 Less as a “transient” and said he was taken into custody.

No information about the suspect’s identify has been released.

“It appears to be a beer run gone bad,” LAPD Officer Taylor McLaws said. “They went in to steal beer and got into some sort of altercation with security.”

KTLA’s John Fenoglio contributed to this article.