Detectives investigating the murder of a retired policeman who was killed near a canal have primised to leave ‘no stone untured’ as they released a photograph in a bid to find a potential witness.
Former policeman Clive Porter, 63, died after he was attacked on the canal towpath near Aylesbury, Buckinghamshire, at around 12.20pm on Monday April 26.
The policeman, who served with Hertfordshire Constabulary until his retirement, died from head injuries at the scene.
He had been working for the Canal Trust on the Grand Union Canal near Broughton.
Detectives investigating the murder have released a grainy image of a figure they believe could be a potential witness.
The photograph shows a dog walker in the distance of the picture, near to the bridge.
Former policeman Clive Porter, 63, (pictured) died after he was attacked on the canal towpath near Aylesbury, Buckinghamshire, at around 12.20pm on Monday April 26
Detectives investigating the murder have promised to ‘leave no stone unturned’ and have released a grainy image of a figure they believe could be a potential witness (pictured)
Senior Investigating Officer, Detective Chief Inspector Andy Shearwood, of the Major Crime Unit, said: ‘We are continuing to investigate the tragic death of Mr Porter, which took place on 26 April on the Aylesbury Arm of the Grand Union Canal.
‘Our team continue to work to establish the full circumstances of the incident, and I am now appealing to a specific potential witness to please come forward with any information they may have.
‘The image we are releasing was taken at 12.10pm on 26 April, shortly before the incident took place, and shows someone who appears to be walking a dog along the towpath, near to Broughton Crossing, located very near to the car park on Broughton Lane.
‘If you recognise this image to be you, or someone you may know, we would please ask that you contact us, as we believe that this person may have information relating to this investigation that could be very important.
‘We are leaving no stone unturned and are very grateful to everyone who has come forward so far and provided information to assist with the investigation, and working out what happened on that day.’
Mr Porter served as a police officer with Hertfordshire Constabulary for 30 years before his retirement.
Earlier this month a homeless man appeared in court charged with the murder of the 63-year-old retired police officer.
Mr Porter died on Monday 26 April along the Grand Union Canal. Pictured: The scene after his death
Detectives have promised to ‘leave no stone unturned’ in their investigation. Pictured: Forensic evidence was gathered at the scene
Daniel Wisniewski, 34, of no fixed abode, was charged with murder on 2 May.
A 41-year-old woman from Birmingham was also arrested on suspicion of assisting an offender and perverting the court of justice.
She has been released on bail to appear at Aylesbury police station on 24 May.
Detective Chief Inspector Shearwood added: ‘Anyone who can help is asked to call 101, or report online. Please quote reference 845 of 26/4 while doing so.
‘If you prefer to remain anonymous, you can do this by calling independent charity Crimestoppers on 0800 555 111. You will have 100% anonymity while reporting this way.’