Man's skull explodes after he lights firework on his head in US

A 43-year-old man, Pablo Ruiz, died in US' Texas after he lit a firework on top of his head recently. Investigators believe the firework exploded from the bottom of the tube and pierced the top of his skull. His friend, who witnessed the incident, said Ruiz had been drinking when he lit the mortar-style firework from his head.