This article contains references to domestic violence. A Queensland grandmother who perished in a suspicious house fire had recently taken out a protection order. Tributes are flowing for 49-year-old Doreen Langham on social media pages that campaign against domestic violence. Media reports have also named Ms Langham as a victim of Monday's blaze, south of Brisbane, along with a 49-year-old man identified as her ex-partner Gary Hely. Police are yet to formally identify the bodies found inside the blackened shell of a Browns Plains home and are awaiting the results of an autopsy. Investigators believe the fire was deliberately lit.