A 72-year-old florist arrested over the fatal stabbing of a suspected robber has been released on bail.
Cecil Coley was held on suspicion of murder following the death of Gary Mullings, 30, who died during a bungled raid at his shop in Old Trafford, Greater Manchester.
Officers were called to the florist in Shrewsbury Street on Tuesday evening after reports that a man had been injured.
Police said a number of men had attempted to rob the shop and that a gun had been found at the scene.
Mr Mullings, from the New Moston area, was taken to hospital with stab wounds but died a short time later. Mr Coley was also injured in the incident and was in hospital overnight before he was questioned by detectives.
A spokesman for Greater Manchester Police said: "A 72-year-old man arrested on suspicion of murder has been bailed until September 9 pending further inquiries."
Mr Mullings was acquitted in January 2002 of the murder of Alan Byron, 18, who was shot dead in a car in Longsight a year earlier. Another man was convicted and jailed for life.
Mr Coley's nephew, Glen Simms, 49, said his uncle had had the shop premises for 40 years.
Mr Simms said: "I heard that two men went in to rob the shop and that my uncle was there with a friend. It appears they were attacked and my uncle acted to defend himself."
Another man, an 18-year-old, remains in hospital for treatment to stab wounds suffered in the incident. He has been arrested on suspicion of robbery.