noted zydeco musician was shot as he was on stage at a Louisiana music festival Friday night, according to family and authorities. Chris Ardoin, a third-generation zydeco performer, was struck in his back, his wife Kerri Ardoin said on his Facebook page early Saturday.... ...The sheriff's office said there were thousands of people leaving the event at the time of the shooting. Two people with guns jumped on the running boards of a vehicle that was exiting, the agency said, but they were arrested by deputies. No identities were released.