Two teenage boys were arrested after allegedly throwing chemical bombs into the Pioneer High School's homecoming dance and a 16-year-old girl's birthday party, sending three to the hospital Saturday night. Police booked the 16 and 17-year-old boys on suspicion of assault with a deadly weapon, San Jose police officer Enrique Garcia said. The teens, according to police reports, first threw a chemical bomb into a crowd at the homecoming dance around 9:50 p.m., Garcia said. No one was injured and the boys ran away. San Jose Unified School District spokeswoman Karen Fuqua said approximately 700 students were on hand for...