Two men are being questioned on suspicion of the murder of Malcolm McKeown, who was found shot dead in a car in Waringstown, Co Down.
The men aged 24 and 25 years old, were arrested on Saturday morning and brought to Musgrave Serious Crime Suite.
Mr McKeown, 54, was shot on Monday evening. His body was found in a car at a petrol station in the town by two teenage boys.
Police believe he was killed nearly two hours before his body was discovered.
In CCTV footage released by the PSNI, Mr McKeown can been seen entering Dewerts Garage in the town at 7.15pm. It is after he left the premises when police say he was shot.
Detective Chief Inspector Peter Montgomery continues to appeal for information in relation to the investigation.
He said: “Were you in Dewart’s Garage or in Waringstown Main Street at that time and did you see anything?
“I am keen to trace the driver and passengers of a dark blue or black VW Passat, registration RK62 PLX, which was seen at 6.20pm in Cambrai Heights before the shooting.
“Did you see this car leaving Cambrai Heights and then travelling along the Dunkirk Road towards Summerhill Road at 7.20pm? If you were driving in these areas and have dashcam I would like to see it,” DCI Montgomery continued.
“If you live in Cambrai Heights or the adjoining streets and have private CCTV please let me know.
“This car was found burnt out on the Glenavon Lane in Lurgan just after 7.30pm. Did you see the occupants get out of it and get into a dark coloured Jeep? If so, do you know where they went? Or did they make off on foot?
“I would also like to hear from anyone who saw Mr McKeown at any stage during Monday in Lurgan or Craigavon.”
You can contact police on the number 101 or contact Crimestoppers anonymously on 0800 555 111.