Roland Griffiths will spend at least 32 years in jail after setting fire to his wife and stepchild. (Michael Currie/AAP PHOTOS)Roland Griffiths will spend at least 32 years in jail after setting fire to his wife and stepchild. (Michael Currie/AAP PHOTOS) Credit: AAPA murderer has been jailed for life after setting his wife and stepdaughter on fire and then blaming his dying partner. Ms Sheahan, a mother of six, died and her 16-year-old daughter suffered burns to more than 50 per cent of her body as she tired to save her mum's life. I won't do it," Griffiths replied, before placing the lighter near the ground and setting Ms Sheahan alight.