A murderer has been jailed for life after setting his wife and stepdaughter on fire and then blaming his dying partner. Roland James Griffiths, 41, was sentenced this morning at Melbourne's Supreme Court almost four years after he poured petrol and set Kylie Sheahan, 35, alight. I won't do it," Griffiths replied, before placing the lighter near the ground and setting Sheahan alight. Flames spread to his 16-year-old stepdaughter and to Griffiths, who extinguished the fire on himself before helping his wife. Emergency services heard Griffiths blaming Sheahan for the fire and telling her: "Why didn't you stop me, you should've stopped me and I should be in jail".