An elderly man's family have said he was knocked unconscious and his autistic son was tasered three times by Florida police during a traffic stop - but cops have refuted their version of events. Peruvian-born Orlando Diaz, 72, was pulled over for an expired license while driving in Bradenton on September 10. His son Francisco Diaz, 30, was asked to help translate, but quickly became upset at how 'aggressive' the officer was, according to his mom Pamela Diaz Burgos, who was in the back seat. She said Francisco attempted to 'intervene', which prompted the cop to 'slam' his father to...