4 October 2012 Last updated at 16:01 ET

Man held over death of Stewart Gillespie in Paisley

Forensics officers carried out investigations at the scene of the incident

A man has been detained by police after a convicted murderer died following an incident at a flat in Renfrewshire.

Officers were called to reports of a disturbance at the flat in Glencairn Road, Paisley, at 22:25 on Wednesday.

Stewart Gillespie, 53, was found inside with serious injuries and was pronounced dead at the scene.

Mr Gillespie served a life sentence for shooting dead Mark Rennie in Paisley in 1996.

It is understood detectives do not believe Mr Gillespie's death was related to his criminal background.

Another man, aged 32, was also injured in the disturbance. He is in a serious but stable condition at Paisley's Royal Alexandra Hospital.

A spokeswoman for Strathclyde Police said extensive inquiries into the incident were ongoing.

Gillespie, who once ran the notorious FCB security firm in Paisley, was a prominent figure in a war between rival drug dealers in the town in the 1990s.

He was jailed for life in 1997 for murdering 27-year-old Mr Rennie in the town's Ferguslie Park area the previous year.

The court was told Gillespie ran from a house with his face masked and shot his victim in the back.

Mr Rennie had been unable to draw his own sawn-off shotgun, which was later found in his jacket sleeve.

Ferguslie Park was described at the time as being a "war zone" because of a feud between the Rennie brothers and the Gillespie family.

Gillespie was released on licence last year but was returned to prison shortly afterwards over allegations he obstructed police officers at his home.

But the case was dropped and he was again released from prison at the start of this year.