A picture of Louisa Denby - murdered in Shipley - has been released.
The 84-year-old was found at a house on Prospect Mount just before midnight yesterday.
She was found after a nine-year-old boy was airlifted to hospital after being stabbed in a skate park in the same town.
Five people were arrested in connection with both incidents - all remain in custody except a 24-year-old man who has been released without charge.
The nine-year-old boy stabbed in the Carnegie Skate Park remains in a stable condition in hospital.
More top news
Smoke could be seen for miles around, and eyewitnesses reported hearing 'multiple explosions' after the fire broke out this afternoon.
Nick Boles had previously come out in support of Boris Johnson, who stepped aside after being criticised by his fellow Leave campaigner.
Rain tonight with heavy showers to come