Two men arrested by detectives investigating the sectarian killing of a popular civil servant in Londonderry have been released on bail.
Police said the 36 and 28-year-olds questioned about the murder of Paul McCauley in 2006 have been released pending further inquiries.
The two suspects were detained on Thursday in Londonderry and Coleraine on suspicion of murder and the attempted murder of two other men injured in the attack.
Mr McCauley, a 38-year-old Catholic, spent almost a decade in a vegetative state after he was beaten by loyalists at a barbecue in the Waterside area of Londonderry in July 2006.
He died in a care home last month.
A 27-year-old woman arrested in Londonderry earlier this week on suspicion of withholding information in relation to the attack was released on Thursday night pending further inquiries.
Police stepped up their investigation following Mr McCauley’s death.
The father-of-one was 29 when he attended the barbecue for a friend who was moving away from Northern Ireland.
A gang of up to 15 people emerged from nearby bushes and attacked him and two friends as they were clearing up after the meal in the early hours of the morning. He suffered severe head injuries.
Piper John McClements, 24, previously known as Daryl Proctor, from the Fountain area of the city, was charged last week with Mr McCauley’s murder.