Kian Bateman, 19, was high on nitrous oxide - laughing gas - before he got into his car and targeted Shelley Davies, 38, outside a Cardiff nightclub on September 27 last year.

Kian Bateman, 19, was high on laughing gas when he drove into and killed mum-of-three Shelley Davies, 38, while also injuring her partner David Bratcher

Shelley Davis has been described as a ‘force of nature’ by her loved ones