A 42-year-old man has been arrested by detectives investigating the murder of Conor McKee in January.
The suspect was detained in north Belfast and taken to a police station in the city for questioning.
Mr McKee, a 31-year-old father of two, was found shot dead at his home in Glenpark Street on January 7. He had been hit a number of times and his body was discovered in an upstairs bedroom by his mother.
He was on bail for drugs offences at the time of his murder.