Here's the info on youtube about the Biker dad clip, turns out he was a double black belt in Karate and jiu-jitsu.
A DAD seen flattening a yob in a clip sweeping the internet was yesterday unmasked as an ex-soldier - with TWO black belts.
Gulf War veteran Jason Smith, 35, who said: "He deserved it."
Burly Jason - a 15st master in karate and jiu-jitsu - was filmed felling the foul-mouthed idiot outside his home as a crowd gathered.
Jason, who has been a bodyguard to stars, had no idea why local "hard nut" Les Andrews stood on his step ranting and raving in St Helens, Merseyside.
He decked him with a single blow. Wife Rebecca, 23, who had cowered with 22-month daughter Boudiccia, said: "I was proud."
Andrews, 23, was arrested and hit with a curfew for yobbery.
Jason said of becoming a web sensation: "People sick of yob culture enjoy seeing someone turn the tables."