Detectives from the PSNI's Major Investigation Team have revisited the west Belfast home where Joe Reilly was shot dead as the investigation to find his killers goes on.
Mr Reilly (43) had been at his Glenwood Court home in Poleglass on Thursday evening when a number of men stormed into his house and shot him dead.
Two people in the house were subsequently ordered into the kitchen and made to lie on the floor while Mr Reilly was kept in the living room.
Children may have seen cold-blooded killers of Belfast man Joe Reilly
He was shot a number of times and died at the scene.
Detective Chief Inspector Peter Montgomery - who is leading the murder probe - said it was a "cold-blooded, summary execution of a man in his own house".
Joe Reilly Poleglass murder 'a cold-blooded and summary execution of man in his own house'
The gunmen have been described as being about six ft tall, wearing dark coats and dark trousers. One was wearing dark rimmed glasses and a Celtic scarf.
Detectives revisited the scene in the early hours of Sunday morning along with crime scene officers in a hunt for clues.