R v Cain Byrne

July 21, 2025

Laura Marshall prosecuted Cain Byrne who was inhaling nitrous oxide before and after he hit and killed an 81-year-old cyclist.

Witnesses said Byrne, who has never held a driving licence, made no attempt to stop at the crossing and was travelling well over the 50mph limit, with one estimating his speed at 80mph.

He received an extended sentence of 16 and a half years, comprising 11 and a half years custody and a five-year extension to licence period, with a 17 years and eight months disqualification from driving.

The case received substantial press coverage including on the BBC, ITV and Sky News, as well as in the Independent, the Daily Mail and the Metro.