Police release shocking CCTV footage of stabbing of Alan Cartwright (15)
Police have released "shocking" CCTV footage showing the moment teenager Alan Cartwright was stabbed in the chest as he was cycling with friends along a busy road in London.
The family of a 15-year-old passionate cyclist stabbed to death in a "senseless" street attack broke down in tears today as they appealed for witnesses to come forward.
Alan Cartwright managed to continue cycling a short distance after the attack on Caledonian Road in Islington, north London, on Friday, but soon collapsed and was pronounced dead at the scene later.
lan's mother and sister described the Army cadet and Celtic and Arsenal fan as a "joker" who loved bikes and never caused any trouble.
Fighting back tears, Alan's mother Michelle Watson, 39, said: "He always made you laugh about anything and everything. He was just the funny one out of his friends.
"I feel angry, I want somebody found for this. I just feel numb.
"Looking at the CCTV footage it looks like he got punched, like somebody had just hit him.
"It was so quick, he just carried on riding and two minutes up the road he is collapsed and dead. It's like it's not real.
"I would say to witnesses, if you've got any sort of conscience come forward because a brother and son is dead."
In the CCTV footage, a second suspect is shown lunging at one of the Alan's friends and knocking him off his bike.
A third is seen crossing the road and grabbing another friend to pull him off his bike.
A post-mortem examination yesterday concluded that the cause of Alan's death was a single stab wound to the chest.
Detective chief inspector Chris Jones, who is leading the investigation for the Homicide and Major Crime Command, appealed for help in identifying the three suspects.
DCI Jones said that, while he was keeping an open mind, lines of inquiry suggested that the motive may have been theft.
He also made it clear that Alan was not a gang member.
"Alan, in my mind, was not a gang member and was purely a 15-year-old boy cycling with his friends on a Friday night at 7.30pm," he said.
"The footage of the suspects attacking Alan and his friends is truly shocking. Alan stood no chance of defending himself against his attacker, who casually stepped out in front of him and stabbed him in the chest.
"Identifying and arresting the suspects is our absolute priority. We are working tirelessly and the investigation is moving at a fast pace."