WARNING: The footage features scenes some may find disturbing. Please use discretion when viewing.

The six-second attack which killed brave Ben Gardner was captured on CCTV.

During the Old Bailey trial of the trio, today found guilty of murdering the Sutton IT expert, the jury was shown the harrowing footage of what Brian Altman QC descirbed as a "cowardly attack".

The footage shows the horrific scene unfold after brave Ben, 30, confronted the group after his girlfriend was twice punched in the face.

Daniel Ransom, 21, from Blake Close, Ross Collender, 21, from Wigmore Road, and Jordan Dixon, 18, all from Carshalton, were today found guilty of Mr Gardner's murder.

Click here for full coverage of the trial and verdict

Explanation of clips in the video:

Clip 1: Ben’s girlfriend is sat on the steps to the left of the screen smoking. She is approached by three males (from left to right - Ransom, Collender, friend) who lean in to her. The friend removes her pirate hat and then Collender takes the wig. Dixon, in dark clothes and white trainers joins the group.

Clip 2: A short time later Ben and his other female friend return with food for his girlfriend.

Clip 3: In the centre of the shot a group of males are getting into a car. To the right of the car a male in a white shirt throws the witches hat up into the air before it lands on the road. This is how the hat ends up as part of the incident.

Clip 4: In the centre of the shot (time code 03:33:54) Dixon in dark clothes and white trainers can be seen wearing a witches' hat.

(Time code 03.33.58) Ransom is seen taking off his dark jacket and is wearing a white shirt underneath.

(Time code 03.34.04) Ransom kicks the hat into the road. Dixon is standing on the road. Ben’s girlfriend with blond hair, black coat and black hair band is in front of him. Ransom kicks the hat twice before spitting in it and handing it to Ben’s girlfriend. Ben is punched by Collender, punched again by Dixon and collapses in middle of the road and is kicked in the head by Daniel Ransom. Ben’s girlfriend also appears to be punched. The suspects run off.

Clip 5: Ransom is seen breaking into a run as he realizes what has happened. He is arrested shortly after.

Clip 6: Police arrive at the scene three minutes later - Ben is lying in the road in front of the police car.

Clip 7: (please note that the time code on this camera is incorrect) This shot from a doorway shows the witches’ hat being picked up, kicked etc up to Ben’s assault and collapse. Ben is seen standing in line with the right of the doorway wearing jeans, black leather jacket and white shirt. Ben’s girlfriend with blond hair, black coat and black hair band is standing next to him.