A Crystal Palace fan was photographed as he lay dying on the floor following a fist fight on his way home from a match, an inquest heard.

Dad Richard Powell, 39, who ran a plastering firm and featured on the BBC series DIY SOS, was floored when he got involved in a scuffle on London Victoria station's concourse. 

Immediately after the 29-second fight, Denis Busu stood over him and took a picture of Mr Powell to send to his girlfriend and allegedly said it "serves him right," Westminster Coroner's Court heard. 

Mr Busu admitted he had taken the picture on his smartphone but said he thought Mr Powell "was having a seizure." 

He denied he said Mr Powell deserved to be punched and insisted he had actually said "look at you, you're drunk." 

Mr Powell, of Higham, and his brother-in-law Ian Wilmore had been heading home from a friendly between Fulham and Crystal Palace when they got off a train and stepped on Mr Busu's shoe, causing it to come off. 

But rather than apologise they became embroiled in an argument in which punches were thrown. 

Mr Powell died in hospital from bleeding on the brain three days later on August 1 last year. 

A coroner ruled on Thursday that Mr Powell was lawfully killed because Mr Busu had thrown the punch in self-defence.

The inquest heard the pair had downed six or seven pints of beer and three shots before, during, and after the match and were heavily intoxicated. 

Mr Busu, 21, was initially arrested on suspicion of causing grievous bodily harm and released on bail but prosecutors decided not to press charges.

Describing how the fight developed, Mr Busu told the inquest he had been heading to his girlfriend's house for a family barbecue when he got off at Victoria. 

He said: "I had my earphones in and I was walking towards the platforms when I felt someone step on my shoe. 

"My shoe actually came off, so I turned around, which is a normal reaction, and said 'what the fuck, man.' 

"One of the men looked at me with a kind of screw-faced expression. Straight away, I realised they were clearly extremely drunk. 

"One of them got in my face really close and grabbed me around my chest. He was very aggressive. 

"I thought, these guys are going to try and assault me or whatever, so I stepped back. 

"He tried to punch me, but he missed. I did punch both of them once. 

"Then one of them got up, and the other one held him back - but he just seemed to fall on the floor. It did seem like a seizure. 

"He was shaking, almost snoring, and couldn't really breathe." 

He added: "I didn't know what to do so I just left. There were people helping. 

"I use technology for everything, and I wanted to show my girlfriend, 'look these two guys just attacked me', so I took a picture. 

"I didn't say 'that serves you right'. I said 'look at you, you're drunk." 

Juanita Cox, who saw the fight, said Mr Busu "simply wanted Mr Powell to leave him alone" and that the pair "came across as extremely aggressive". 

Detective Sergeant Andrew Natrass, of the British Transport Police, talked the inquest through a series of still images from CCTV cameras which showed the 29-second scrap between the three men. 

He said: "One of the men actually clipped the heel of Mr Busu's shoe. 

"He turned around, expecting an apology - but he didn't get one. It just escalated very quickly from there. 

"You can see that Mr Wilmore clearly takes offence at whatever Mr Busu says, and he stops in front of him, squaring up to him. 

"The CCTV shows them standing nose-to-nose." 

Det Sgt Natrass said Mr Wilmore can be seen "punching or pushing" Mr Busu away, before Mr Powell gets involved. 

Mr Wilmore is floored in the scuffle, and Mr Busu and Mr Powell exchange punches, before Mr Powell also falls down. 

Det Sgt Natrass said: "When Mr Powell gets back to his feet, Mr Wilmore can clearly see that things are getting out of hand, and tries to restrain him. 

"But Mr Powell just collapses on the floor." 

Pathologist Dr Simon Poole, who carried out the post-mortem examination, said: "The punch caused significant damage to the right vertebral artery and led to bleeding in the brain". 

He gave the cause of death as "traumatic sub-arachnoid haemorrhage". 

Coroner Dr Shirley Radcliffe recorded a conclusion of lawful killing on Thursday.

She said: "When a blow is landed and causes the death of an individual, we have to understand whether this was a lawful, or unlawful killing. 

"Mr Busu had no intention whatsoever of taking Mr Powell's life. 

"He was simply defending himself against two men who were being particularly aggressive. 

"He planted a punch in self-defence that has led to Mr Powell's death and so I have to record a conclusion of lawful killing."