Four people arrested in connection with the murder of Martin Conlon in Armagh have been released without charge.
Mr Conlon was found near Keady in south Armagh
Mr Conlon, 35, from Railway Street in the city, was found shot at Farnaloy Road outside Keady on 7 November.
Police are still questioning one man about the killing. Two men had been arrested in the Armagh area and a third detained in Dungannon on Thursday.
A woman and teenage boy were arrested on Wednesday. Police have said a homophobic motive is a line of inquiry.
They are also looking at whether Mr Conlon was killed by dissident republicans, with whom he was linked.
Mr Conlon was released recently from prison in the Republic of Ireland where he had served a four year sentence after being arrested at a Real IRA training camp.
Detectives returned to the scene of the shooting on Monday to stage a partial reconstruction in a bid to piece together the circumstances surrounding the murder and identify new witnesses.