WINNETKA ( Authorities have formally charged a 24-year-old man with killing his ex-girlfriend and her new boyfriend at her Winnetka apartment building.

The Los Angeles County District Attorney’s Office announced Friday that  Brian Gonzales,  AKA Brian Hammons, faces two counts of murder with special circumstance allegations of murder during the commission of a kidnapping and multiple murders.

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Gonzales also faces allegations that he used and fired a handgun in the commission of the crimes in the incident.

His arraignment is scheduled for next month  at the Angeles County Superior Court, Van Nuys Branch.

Prosecutors allege that on Jan. 17, Gonzales allegedly confronted his ex-girlfriend, Emily Fox, 22, and Jerred Scott, 24, in a hallway at her apartment building. While Scott attempted to escape, Fox dialed 911. Gonzales is accused of catching up to Scott and bringing him back at gunpoint to Fox’s location before fatally shooting both of them.

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If convicted as charged, Gonzales faces the death penalty or life in prison without the possibility of parole.

The DA said the decision on whether to seek the death penalty will be made at a later date.

Gonzales is being held without bail.

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The case remains under investigation by the Los Angeles Police Department, Valley Bureau.