Dec. 15 (UPI) -- The former Royal Marine who pleaded guilty to mowing down 134 Liverpool football club fans at a victory parade in England was described as a man who lost his temper during a sentencing hearing on Monday.

Paul Doyle, 54, is to be sentenced Tuesday by Judge Andrew Menary for striking elderly people and children as young as 6 months, with more than 50 hospitalized, on May 26.

Doyle is facing a sentence of up to life in prison after changing his not guilty plea to guilty on the first day of the trial Nov. 26.

Paramedic Jay Vernon, who was first on scene at the Liverpool parade, told the London Standard he feared there had been a terror attack.

On Monday, bodycam footage was played, and victim impact statements explained how they had "emotional and psychological injury" as well as "frequent flashbacks."