A 40-year-old man has been arrested in connection with the murder of a community worker in east Belfast in January.
Ian Ogle, 45, died after being stabbed 11 times as he prayed with a pastor on Cluan Place on 27 January.
The man was taken to Musgrave Street Police Station for questioning.
He has since been released on police bail pending further enquiries.
The PSNI has said that Mr Ogle was the victim of a "horrific murder".
"His skull was fractured and he was savagely stabbed 11 times in the back before being left to die on the street," Detective Chief Inspector Peter McKenna said.
"His family deserve justice," he added.
The PSNI has appealed to members of the public with information to come forward.