A woman and her three children were killed after her sister’s ex-partner allegedly set fire to their house, a jury has been told. Bryonie Gawith, 29, Denisty Birtle, nine, Oscar Birtle, five, and 22-month-old Aubree Birtle died after the blaze at their home in Westbury Road, Bradford, in the early hours of August 21 last year. Sharaz Ali, 40, of no fixed address, and Calum Sunderland, 26, of Calton Street, Keighley, are charged with murdering the family, as well as attempting to murder Ms