A driver who inhaled nitrous oxide from a balloon before and after killing an elderly cyclist at a pedestrian crossing has been detained for more than 11 years.Cain Byrne, 20, ignored a red light and was well over the 50mph limit when he hit Graham Slinn, 81, throwing him at least 15ft in the air.Sheffield Crown Court heard Byrne, who has never held a driving licence, made no attempt to stop at the crossing and could have been travelling at up to 80mph, according to a witness.On Monday he was sentenced to 11 years and six months’ detention in a young offender institution, with an extended licence period of five years. He was banned from driving for 17 years and eight months.
