The Latest on a shooting that killed a San Diego police officer and wounded another (all times local):

12:50 p.m.

A San Diego policeman who survived a shooting that killed his partner is awake, but investigators have yet to interview him.

Police Chief Shelley Zimmerman says Wade Irwin is still on track Saturday to make a full recovery, two days after the gang unit officer was wounded in a gunbattle.

His partner, 16-year veteran Jonathan DeGuzman, was killed. The suspect was critically wounded.

Zimmerman, who visited Irwin at the hospital, says police haven't determined whether the shooting was premeditated.

She says investigators have reviewed video from police body camera footage.

However, she didn't elaborate.

A second man was arrested on a warrant near the shooting scene, but the chief says investigators haven't yet determined if he was involved.

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9:49 a.m.

San Diego's mayor and police chief will answer questions Saturday at the hospital where a wounded officer is recovering after a gunbattle that killed his partner.

The suspected shooter was critically wounded in the Thursday night confrontation in a southeastern neighborhood. A second man described only as a potential suspect was later arrested on an unrelated warrant.

The shooting started after gang detail Officers Jonathan DeGuzman and Wade Irwin stopped someone on the street, but details haven't been released.

Mayor Kevin Faulconer and Police Chief Shelley Zimmerman will be answering media questions at noon at Scripps Mercy Hospital, where Wade is being treated. He's expected to recover.