Officials with Pacific Gas and Electric (PG&E) say it was a gas leak that led to Thursday’s explosion at a home near Hayward, hospitalizing six with significant injuries. PG&E says crews stopped the flow of gas, which they say was caused by a third-party contractor damaging an underground line, 10 minutes before the explosion occurred, nearly two hours after it was first reported. The incident has many neighbors in the area questioning why there wasn't an evacuation in the two hours before the e