What started as an attempt to keep the peace turned tragic as a man is now charged with murder after helping break up a fight on a bus. Edward Hilbert, 55, intervened in a fight on a San Diego city bus on Saturday, restraining a 28-year-old man for several minutes after he had gotten into a fight with a woman. During this time, the younger man lost consciousness and went into medical distress, police told ABC 10 San Diego, and was unresponsive when law enforcement responded to the scene. First responders attempted to perform CPR while the man was lying...