Shocking headcam footage of the moment a man riding his motorbike was fatally struck by a car coming in the opposite direction has been released by the rider's grieving family and the police.
Although the rider, David Holmes, was travelling above the speed limit at about 97mph, the car driver was prosecuted after admitting he had not seen the motorbike.
The incident took place in June 2013. Holmes' mother, Brenda, a retired nurse who lives in North Walsham in Norfolk, released the distressing video to warn drivers to think seriously about road safety.
She also wanted something positive to come out of her loss, saying: "If we can prevent one accident, one family going through what we have been through, then David would not have died in vain."
In less than a week, the video has had over 9 million views. It contains images which some may find distressing, but it does not show any graphic images.
The Norfolk constabulary said that they wanted to highlight the reality of fatal collisions.
Chief inspector Chris Spinks, head of the Norfolk and Suffolk roads policing unit, said: "I firmly believe this footage is powerful enough to make riders and drivers think about their behaviour on the road; and most important of all, change it for the better.
"The causes of collisions are almost always the result of driver or rider behaviour. Motorists, be it on two wheels or four, need to take responsibility for their actions. The aim of releasing this footage is not to achieve agreement from the public; it's about delivering messages around road safety and how deaths can be prevented.
"I welcome the fact it will create debate and, in my view, this will get people talking about road safety; their actions behind the wheel or on a bike and it will go some way to achieving our aims."
Rossalyn Warren is a senior reporter for BuzzFeed News and is based in London.
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