The family of a man who was found murdered in his home have said his spirit will not be at peace until they find his killer.

Duncan Banks, 39, was found dead at the property in Skye Avenue, Dunfermline on September 28, having sustained significant head injuries. It is thought that he was murdered within a two-hour window of the morning that day.

A £10,000 reward has been offered for information that leads to the culprit's arrest.

In a statement released by Police Scotland, his mother, Dorothy Banks said: "As a mother, it is your worst nightmare to have to bury your child, yet that is the reality I am dealing with following Duncan’s murder.

"Duncan wouldn’t hurt a fly and doted on his family. He was a loving son, brother uncle and friend and his death has left a huge void in our family, which we are struggling to cope with at this time.

"This has been undoubtedly, the most distressing and unsettling period of our lives and it has been made all the more difficult given that we do not know who killed Duncan, and more importantly, why."

Mrs Banks acknowledged that her son had experienced personal problems with drug addiction, as she urged anyone with information to come forward so she could "lay Duncan to rest".

She said: "We know that Duncan had his own personal issues and had been continuing to battle drug addiction. But to be killed in the manner he was is both cruel and unnecessary and I believe that his spirit will not be at peace until we get justice for him."

Mrs Banks added: "At this time we cannot lay Duncan to rest while the investigation to find his killer continues, so I would like to make a plea to anyone who knows something to do the right thing and tell the police anything they know.

"Someone somewhere must know something so please come forward.

"I would finally like to thank all of our friends, neighbours and other members of the community for their kind words and support during this time."

Officers have been conducting various inquiries to trace whoever was responsible for his death and believe someone from the local community has vital information that van assist with this investigation.

Detective Chief Inspector Keith Hardie, of Police Scotland, said: "From our inquiries, I am now satisfied that Duncan was alive at around 9.30am on Sunday September 27 and was probably dead at 11.30am on the same day.

"That focuses our investigation and gives us a two-hour window when we believe Duncan was murdered.

"I would ask that any member of the local community who knows of someone acting suspiciously during this time, or who cannot account for there whereabouts or actions that morning, contacts police immediately.

"The public have a key role to play in helping us get justice for Duncan and his family and anyone with information is asked to come forward.

"Our colleagues at Crimestoppers are also offering a reward of up to £10,000 upon conviction for any information relevant to this investigation.

"Those who know anything about Duncan's murder can contact Crimestoppers in complete anonymity if they do not wish to speak to police."