Ehsannullah Mohabat wanted over Irfan Ahmad murder
A teenager is being sought over the murder of a shop assistant in north London, Scotland Yard has said.
Irfan Ahmad, 24, was stabbed in the chest at Halal Food Direct in The Broadway in Wood Green on 29 September.
Ehsannullah Mohabat, 18, left the store shortly after Mr Ahmad was attacked and is thought to have returned home to Enfield before disappearing.
A £10,000 reward has also been offered for information leading to the prosecution of Mr Ahmad's killer.
The victim, who lived in Hanley Road, Finsbury Park, north London, was believed to have had a row with Mr Mohabat shortly before he died.
The Metropolitan Police said the suspect was 5'5" (1.65m) tall and was wearing a black hooded top with red writing on the front at the time of the stabbing, which took place at about 15:00 BST.
He also had baggy grey trousers and black trainers.
He is thought to have contacts in several areas of north and east London, as well as Birmingham, Gloucester and Leicester.
"Mr Ahmad was killed in a busy area in the middle of the afternoon, and we need to hear from any witnesses who have not yet come forward," said Det Ch Insp Steven Lawrence.