Van driver Matthew Tvrdon has admitted at Cardiff Crown Court that he killed mother-of-three Karina Menzies in a 'hit-and-run' incident in the Welsh capital last October.
He has pleaded guilty to manslaughter on the grounds of diminished responsibility.
The 32-year-old appeared via videolink at Cardiff Crown Court from Ashworth high security psychiatric hospital in Maghull, Merseyside.
Karina Menzies died in the incident in the Ely area of Cardiff on October 19.
More top news
A dry night is expected throughout the country. During the early hours clear spells are likely to develop allowing the temperatures to fall.
More than a thousand people gathered for the funeral of Wales international rugby league player Danny Jones in Halifax.
A chef from St Gwladwys Bargoed Primary School has won School Chef of the Year in a National competition