这次加州屠杀的凶手步枪有没有bb ,是不是10发magazine?

dart

The suspects fired 65 to 75 rifle rounds inside the center, leaving behind four spent high-capacity magazines. Cornered after a chase, “the suspects are believed to have fired 76 rifle rounds at the officers,” said Jarrod Burguan, the San Bernardino police chief. In the shootout with 23 officers from seven different agencies, he said, “Law enforcement fired approximately 380 rounds at the suspects.” During the shootout, a San Bernardino officer was shot in the leg, and a sheriff’s deputy was cut by flying debris, Chief Burguan said.

http://www.nytimes.com/2015/12/04/us/san-bernardino-shooting.html?_r=0