Warning signs that your headache could be something that could be deadlyPeople call retired LASD Homicide Lieutenant Gil Carrillo a hero for helping capture the 'Night Stalker' but he calls Dr. Bowen Jiang a hero. The neurosurgeon with Providence St. Jude Medical Center diagnosed Carrillo had a subdural hematoma or 'brain bleed' and performed emergency surgery to save him. Dr. Jiang talks about what symptoms everyone should look out for.