Detectives investigating the murder of a man with learning difficulties more than 14 years ago have made a second arrest in a week.
The 32-year-old suspect w as detained in the Shankill area of Belfast on Thursday morning and has been taken to a police station in the city for questioning.
David Clarke, 26, who was described by police as "inoffensive and vulnerable", was beaten to death at his flat in north Belfast in June 2001.
His body was found hours later by concerned friends who forced their way in to the property at Forthriver Road.
PSNI Detective Chief Inspector Alan Dickson said: "I would continue to ask anyone with information to do the right thing and come forward with anything they know."
On Sunday, detectives said they had re-opened the investigation after receiving new information.
The murder was carried out between midnight and 4am on June 6 2001, when the killer or killers forced their way in to Mr Clarke's home.
It is understood a number of people were present in the flat at the time of the assault, including a woman.
A 34-year-old man arrested on Monday was released on bail pending further inquiries.