A woman has appeared in court charged with the murder of a pensioner in a Cardiff store on Wednesday.
Mrs Thomas was pronounced dead at hospital on Wednesday
Deborah Hancock, 44, appeared at Cardiff Magistrates Court.
Ms Hancock, of Tresillian Terrace, Cardiff, was remanded in custody to appear at Cardiff Crown Court on 31 October.
Widow Valerie Thomas, 75, of Roath, Cardiff, died from a single stab wound to the back at the Poundstretcher store on Church Street in the city centre.
Detective Superintendent Paul Kemp, who is leading the police inquiry, said on Friday he is "very keen" to hear from people who witnessed the incident.
The Poundstretcher store, just 200 yards from the Millennium Stadium, reopened on Saturday morning following forensic examination of the scene.
Police have appealed for anyone with information to contact the incident room at Fairwater police station on 029 20 571 530.