28 August 2020, 11:18 | Updated: 28 August 2020, 11:20 Watch the moment police officers Taser a knife-wielding one-armed roller skater moments after he stabbed three victims This is the dramatic moment police officers stopped Benjamin Bridgeman, 38, who is on trial accused of attempted murder following the attacks in Knowle, Bristol, earlier this year. A jury at Bristol Crown Court heard he stabbed a man in the back before continuing on and slashing another in the head on February 25.