West Yorkshire Police have now named a pensioner who died in a house fire in Huddersfield.
Police were called at 11.35pm on Monday, 17 June, to reports of a fire at a house on Leeds Road.
Julia Flynn, 74, taken to hospital for urgent medical treatment but died in hospital 12 days later.
Detective Chief Inspector Heather Whoriskey, who is leading the investigation, said: “I want to appeal directly to anyone who witnessed any suspicious behaviour in or around the area either late on Monday 17 June or into the early hours of Tuesday 18 June to come forward.”
Anyone who witnessed the fatal fire or has any further information is asked to contact the police.
Tyler Flanagan, aged 19, of no fixed abode, has been charged with two separate instances of arson with intent to endanger life, attempted burglary and possession of a bladed article.