A Nigerian, Michael Adegbite(pictured) was on Sunday evening stabbed to death in the UK while selling a laptop to a man he met on Gumtree, a free classified advertisement website.
Michael was stabbed to death by three teenagers when he resisted their attempt to rob him of his laptop during a meet-up he had arranged with the buyer so as to hand over the computer in Enfield, north London.
Ironically, the 28-year-old who was a teaching assistant was a campaigner against knife crime and mentored troubled children. 
Michael who was equally a part-time fitness instructor and a model had sold his MacBook, using the listings website Gumtree and drove with a friend to hand over the laptop to the buyer.
At the meeting point, three teenager apparently burst in on him and his friend, and attempted to steal the computer, but he took it back and the robbers ran away.
The victim and his companion were joined by another friend and set off to try and find the youngsters – but when they tracked them down a row broke out and Michael was killed.
Three 18-year-old men have now been arrested in connection with the incident and are currently being questioned by police.
A university graduate, who was a promising footballer, and once tried out for Wolverhampton Wanderers, Michael Adegbite worked as a teaching assistant at Heathcote School in Chingford, and coached young footballers at Eastside United FC in Hackney.
