ICE tackle U.S. citizenโshoot him with taser after already pinned to ground.
4 agents hold the man face downโwhile 5th agent tazed him in the back.
Another agent points a weapon at a witness.
"Don't point that at me again," man says.
"I don't feel safe," agent yells back. "It's whatever I sayโGet back!"
The man detained was a community volunteer with VC Defensa.
Incident occurred in an area open to the public at the Ventura County Government Center in Ventura, California.