Authorities in Maryland say that three masked teenagers hopped onto a school bus late Monday afternoon and attempted to kill a 14-year-old boy on board. "This was an attempted murder, plain and simple," Martin Diggs, head of the bus drivers’ union in Prince George’s County, told WJLA-TV about the Monday incident near the Iverson Mall. "Call it what it is." After the three teenagers boarded the bus, one of them is said to have pointed a gun at the 14-year-old’s head and pulled the trigger three times.