A Sydney man who rose to global fame for disarming a gunman in last year’s Bondi Beach mass shooting pleaded not guilty on Wednesday to assaulting his father . Ahmed al Ahmed, a fruit seller, was hailed as a hero when viral video footage showed him intervening in the December 14 attack, which killed 15 people at a Jewish festival on the beach. The 44-year-old ducked between parked cars as the shooting unfolded, grabbing one of the two gunmen and wresting away his weapon in an effort to stop the killing.