Los Angeles Police Department

California police look to video after deadly Costco shooting

Authorities are poring through video to figure out how a confrontation between an off-duty Los Angeles police officer and a man described by family as mentally disabled ended in a shooting in a Costco store that killed the man and critically wounded his parents.

The officer opened fire after Kenneth French, 32, of Riverside, attacked him without provocation as the officer held his young child Friday night, according to police in Corona, about 40 miles (64 kilometers) east of LA.

The officer was the only one who fired shots, striking French and two of his family members, police said.

Authorities did not respond to requests for more information about what led to the...