On September 17, 1911, as his stepmother attempted to light the family's oil stove, it exploded and set her on fire. Kehoe threw a bucket of water on her, but the fire was oil-based and his action spread the flames more rapidly, which engulfed and immolated her body. The injuries were fatal and she died the next day.[8] Some of Kehoe's later neighbors in Bath believed that he had caused the stove explosion.[5][9][Note 1]