A teacher who was beaten unconscious in an attack by a gang outside a Kent railway station has said he fears they could assault someone else.
Andy Wicks, 45, who lives in Plumstead, south-east London was knocked to the ground and kicked repeatedly in the head by three men in Dartford, Kent.
The father of two said the trio seemed to pick on him for sport.
"I am concerned that these people should be caught because they will clearly do it again," he said.
"I think someone could be very seriously hurt, even killed, because at least one of them is a psycho who seemed to really enjoy it."
The attack happened as Mr Wicks walked to Dartford station to catch a train home with a woman friend shortly after midnight on 24 July.
The gang threw a plastic bottle at him and verbally abused him before one of them punched him to the ground from behind and kicked him repeatedly.
Mr Wicks, who works at a primary school in Sidcup, south London, was left with a deep cut under his right eye, broken glasses and bruising.
His friend tried to pull the men off, but one attacker pushed her away before kicking him again.
"The next thing I knew, there was blood everywhere, coming out of my nose," said Mr Wicks.
"I did not know what happened, but by all accounts I was kicked repeatedly in the head while I was on the floor.
"It was worse for my friend, she saw it. I was unconscious. I do not know how long it was, but it was at least 15 or 30 seconds."
He said his wife and two young children were extremely upset by the attack.
"Even now, if I go out and see a group of people coming towards me I feel much more worried than I used to."
British Transport Police (BTP) have issued CCTV images of the suspects.
"Despite previous appeals for information, those responsible for this despicable attack remain outstanding," said Det Sgt Ashley Cooper.
"Mr Wicks was simply travelling home after an evening with colleagues when he became the unwitting victim of this brutal attack and it is only through sheer good fortune that his injuries were not more severe."