This is the moment a teenager riding an e-bike while high on cannabis knocked down and killed an 86-year-old woman on a zebra crossing.

Gloria Stephenson, 86, was on a Zebra crossing when e bike rider Billy Stokoe, 19, hit her at high speed. Stokoe couldn't brake because he held his mobile phone in his left hand.

Gloria Stephenson, 86, was on a Zebra crossing when e bike rider Billy Stokoe, 19, hit her at high speed. Stokoe couldn't brake because he held his mobile phone in his left hand.