A black Volvo is shown on video appearing to overtake other vehicles moments before it strikes headteacher Michael Mullins as he cycles home from Stretford Grammar School on April 20. Jurors at Manchester’s Minshull Street Crown Court watch accounts and playback evidence said to show the car leaving a trail at high speed, with Mr Mullins trapped under the vehicle and found dying near Wet Gate Lane in Lymm, Cheshire.

Prosecutors say Simon Richardson drove on after hitting Mr Mullins, at speeds described as more than 60mph, causing him to be dragged for about a mile. Medical evidence includes testimony from an emergency medicine consultant that Mr Mullins likely survived the initial impact, while an Apple Watch record is presented as suggesting he remained physiologically alive. The defence disputes the reliability of the watch data, including questions about heart-rate readings after the time of death and a recorded data gap.

Richardson denies murder and faces alternative charges including manslaughter and dangerous driving. The trial continues, with further evidence on GPS and phone location described alongside the watch data to reconstruct movements before and after the collision.