[Video Link]

From the description for this video by photographer and military veteran Adam Plantz:

Bob O'Grady being arrested in the San Diego Civic Center Plaza for laying inside of his sleeping bag to stay warm while a group of non-violent occupiers from San Diego, Los Angeles, Irvine, Encinitas, and other transplants from various locations across the US pow-wow under an erected U.S. flag in the heart of the plaza; in celebration of Veteran's Day. SDPD uses excessive force to apprehend Bob, a SDPD officer uses a choking technique I never knew was legal in the continuum of force ladder. That must come after using a closed fist to assault the suspect in the face.

The San Diego Reader reports that O'Grady is 28 years old, and that he was choked and arrested at around 2:35 AM Saturday morning in San Diego's Civic Center Plaza after police ordered him to "exit his sleeping bag and sit up." The video above shows that he appeared to pose no threat to the armed officers surrounding him. Read eyewitness reports here.