Dad: 'Shock' over son who died after arrest

Ron Thomas, the father of victim, Kelly Thomas, stands next to a memorial for his son on Wednesday, Aug. 3, 2011, at the Fullerton Transportation Center in Fullerton, Calif. The parents of Kelly Thomas, a homeless man have demanded the release of a 911 tape and possible surveillance video from a California city, hoping the material will shed more light on what led to a physical altercation last month between police officers and their son, who later died. (AP Photo/Damian Dovarganes)