Omar Harrison was one of three men who attacked Mahad Mohammed in July 2010

A Queensbury teenager who stabbed a man to death in south west London has been jailed for nine years today (Friday)

Omar Harrison, 19, of Kenmore Road, was one of three men who attacked and knifed Mahad Mohammed in July 2010.

The Old Bailey heard Harrison, Jermaine Sawyers, 19, and Cori Lindsey, 18, attacked the 20-year-old in the Winstanley Estate in Battersea, at 1.30am.

Residents of the estate were woken up by the sounds of shouting and Mr Mohammed’s cries for help with witnesses recalling him running away while heavily bleeding before collapsing.

A post mortem result showed he had been stabbed four times in his back, hip, chest and neck.

Last month at the Old Bailey, Harrison was found guilty of manslaughter.

Sawyers and Lindsey, both of no fixed address, were convicted of murder.

Both were sentenced to life in jail.

Sawyers must serve a minimum of 20 years and Lindsey 14-and-a-half years.

Detective Inspector Dave Reid, investigating officer, said: “Mahad Mohammed was viciously assaulted and murdered by a group of men that included Sawyers, Harrison and Lindsey.

“Whatever the reason for his meeting with Sawyers that evening, Mahad was outnumbered and brutally attacked without any opportunity to defend himself or get away.”