This is the moment a Tube passenger was arrested after killing a commuter who 'brushed past' him with a single punch.

Rakeem Miles, 24, grabbed 'gentle' AI engineer Samuel Winter from behind with such force he tore his top in two before punching him once in the head, sending him tumbling to the floor at the entrance to a London Underground station.

The brutal assault left Mr Winter fatally injured, dying in hospital two days after the attack. Miles ultimately pleaded guilty to manslaughter for the attack but has shown no remorse.

He is now serving an eight-year sentence - but could be out on the streets in five and a half years. Campaigners are calling for the sentence to be revisited, branding it 'simply inadequate' for an 'unprovoked attack'.

The pair had been travelling on separate carriages on the Jubilee line before disembarking at Southwark station at around 9.30pm on August 22 last year. As they left the station, police say Mr Winter 'brushed past' Miles and continued walking.