1 shot at Sunvalley Mall in Concord, police say

CONCORD, Calif. (KGO) -- New details emerged Friday night in a shooting that happened inside Sunvalley Mall in Concord.

Investigators say it started as a robbery just after 3:34p.m. Friday afternoon.

But when someone tried to help the robbery victim - the suspects opened fire.

The gunfire sent shoppers and people working at the mall scrambling for cover.

"Everybody running started running out, everybody started running out," said "Mike," who used a pseudonym.

The victim was taken to John Muir medical center-- where he is in stable but critical condition.

Police won't say if a suspect is in custody -- but say there's no threat to the public.

The mall was put on lockdown-- and was closed for the night.