Police have revealed they have doubled the reward to £20,000 in the hunt for the killer in Scotland's unsolved cheesewire murder.
It comes as September 29 marks 38 years since Aberdeen taxi driver George Murdoch picked up what would turn out to be his last ever fare.
The 58-year-old, who was described as 'kind and gentle', was found brutally beaten and strangled outside his car in the leafy city suburb of Pitfodels.
At 8.35pm on that Thursday in 1983, George Murdoch had told his control room he was heading to Culter but would never make it to his destination.

He had turned off onto Pitfodels Station Road, just on the outskirts of the city, where he was subjected to a brutal attack where a cheese wire was used.
No one has ever been arrested in connection with his horrific murder.
His heartbroken family, who knew him as ‘Dod', have now been searching for answers for over 30 years and have set up a Facebook page to gather information.
Police announced on Wednesday, September 29, the reward for information that could reveal the identity of his killer has been doubled from £10,000 to £20,000.
Detective Inspector James Callander, from Police Scotland's Major Investigation Team, said:
“No matter how much time has passed, we still receive a positive response from members of the public from all around the world when we appeal for information about this senseless murder.
“Over the years we have received sporadic information about what may have happened to George, and this is always investigated. It is apparent that many people will still have information that may help us bring closure to his family.
“Stories are passed on, or people remember something that may have seemed insignificant to them at the time, but is actually vital for us.
"We are urging anyone who has not come forward previously who believes they can assist the investigation to contact 101 or e-mail a dedicated inbox at SCDHOLMESAberdeen@scotland.pnn.police.uk."