A road menace was seen laughing and giggling just moments after he killed a doting father while showing off in a high performance car.
Zaffer Kurshid, 21, had just passed his driving test and was in his brother's powerful Volvo S60 car when he ploughed into Robert Allen at 70mph in a 30mph zone.
The 36-year-old was chasing his dog who had run into a road when Kurshid roared into him at 70mph, catapulting the father-of-one 40 yards into the air.
As the victim lay dying, Kurshid, of Bolton, Greater Manchester, sped off with rap music blaring from the stereo and dumped the 155mph car.