Detectives investigating the murder of David Brickwood are beginning the second week of the inquiry as they hunt for the person who killed the much-loved 74-year-old.
Officers spent Friday night and the early hours of Saturday morning talking to people in Abington who may have been in the area at the time of the attack last weekend.
The operation was marked by an emotional candle-lit tribute by friends and family outside Mr Brickwood’s home in Lindsay Avenue.
Detectives say it is difficult to understand why Mr Brickwood, a well-loved and respected member of the community, was targeted by the attackers.
Detective Chief Inspector Mick Graham, who is leading the investigation, said: “We have spoken to a lot of people during the last seven days, however there is always a chance that someone who was in Abington around the time of the incident and who saw something hasn’t yet spoken to us.
“Often, people don’t realise they have seen something which is of significance to the investigation, which is why we were out and about in Abington.
“I want anyone who may have seen people acting suspiciously in the Lindsay Avenue area to call us, no matter how insignificant they think it may be.
“I would particularly like to hear from anyone who may have witnessed people acting suspiciously between midnight and 2.30am.”
Anyone with information about the murder of David Brickwood, or who believes they may have seen something of significance in the area of Lindsay Avenue last week, is urged to call police on 101.
Members of the public can also call independent charity Crimestoppers anonymously on 0800 555 111 or use their anonymous online form at Crimestoppers-uk.org