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.
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A band of rain pushing in overnight, bringing with it the odd spot of coastal and hill fog, but things should improve by tomorrow.
Local authorities said the move is necessary to "avert the growing number of deaths and increasing harm linked to psychoactive substances".
Sunny and bright spells for most of us this afternoon, feeling pleasantly warm.