PSNI detectives investigating the murder of Robbie Lawlor in north Belfast on Saturday have arrested a 36-year-old man on suspicion of murder.
The man was detained last night and the PSNI said he remains in custody.
Four people have previously been arrested and questioned over the fatal shooting of Lawlor at Etna Drive in the Ardoyne on Saturday morning.
Two men, aged 30 and 33, and a 17-year-old boy were yesterday released unconditionally, while a 27-year-old man who had also been questioned was released unconditionally on Monday.
The PSNI believes a single gunman fired several shots at Lawlor, who was a suspect in the murder of 17-year-old Keane Mulready-Woods from Drogheda earlier this year.
Lawlor was well known to gardaí for his involvement in serious and organised crime.
