DETECTIVES probing the murder of lecturer Roger Gray are urging two “potential witnesses” to come forward.
A man and woman were seen cycling on Merchiston Crescent – where Mr Gray lived – at the corner of West Castle Road, at around 1.30am last Saturday.
It is believed the maths and statistics lecturer was stabbed to death in his own home sometime between Friday night and Saturday morning.
Both cyclists are described as wearing sleeveless yellow reflective tops, with diagonal stripes and both had panniers on their bikes.
The man is described as white, between 40 and 45-years-old, 6ft tall, and of medium build.
The woman is described as white, 5ft 4ins to 5ft 5ins tall, 35 to 40-years-old, with long dark hair that was tied up in a ponytail.
Detective Chief Inspector Gareth Blair, who is leading the investigation, appealed for the pair to come forward.
He said: “It is important that we speak with the two cyclists as soon as possible, and I would appeal to them to contact us on our confidential hotline number, 0131 311 5840.
“Likewise, anyone with any information that can assist us in tracing these potential witnesses should also get in touch.”
Anyone with any information can also contact the following email address, firstname.lastname@example.org