Who is John Hunt? The BBC Five Live racing commentator whose wife and two daughters were 'murdered' in deadly crossbow rampage

There has been an outpouring of support for BBC Five Live racing commentator News Today John Hunt after it was revealed his wife and two daughters were victims of a deadly crossbow attack at their home.
John's wife Carol, 61, and daughters Louise, 25, and Hannah, 28, were found fatally injured at their £800,000 detached home in Bushey, Hertfordshire, last night.
Kyle Clifford, 26, from Enfield, is being hunted by police and is believed to be armed and dangerous.  
BBC stalwart John Hunt has worked at the corporation for 30 years as a racing commentator and previous to this worked as a police officer. 
The BBC stalwart has often spoke lovingly about his family and credited his wife Carol with his broadcasting career after she spotted an advert in the Harrow Observer for a job as a trainee broadcaster.  
John with his wife Carol, who was found with fatal injuries at their £800,000 detached house in Bushey, Hertfordshire last night
Hannah Hunt, sister of Louise and daughter of John, also died after being shot with a crossbow 
Victim Louise Hunt is the ex-girlfriend of crossbow suspect Kyle Clifford
A huge manhunt is underway to find suspect Kyle Clifford, 26, who is the ex-boyfriend of John's daughter Louise
Hunt, a regular racetrack caller and frequent presenter on At the Races, is now most widely heard as the commentary voice for the sport on BBC 5Live.