The mother of a man who died after being hit by a single punch has spoken to ITV Meridian about her son's death.
Lewis Gill admitted manslaughter and was jailed for four years after punching and killing Andrew Young, who had Asperger's syndrome.
Mr Young's mother Pamela says she was horrified when she saw CCTV of the incident which led to her son's death.
WARNING: This video contains graphic content.
CCTV has been released of the moment a 40-year-old man was knocked to the ground by a single blow - after he challenged a man about cycling on the pavement. Andrew Young, who had Asperger's syndrome, died in hospital the next day.
Lewis Gill, who is 20, pleaded to guilty manslaughter last week. He was jailed for four years. He struck Mr Young after seeing him talk to the cyclist in Charminster in Bournemouth on 6th November last year.
Mr Young's mother Pamela has described the sentence as an absolute joke. Lawyers for Gill said he wishes he could turn back the clock and not act in the way he had.