Ghost guns, one of which was used in the Saugus High School shooting, frustrate law enforcement

KNXAM: On-Demand
Thursday, November 21st
After it was revealed that the teenage shooter at Saugus High School used a "ghost gun" to kill his fellow students, police agencies are calling attention to this highly unregulated, tough-to-enforce segment of the gun market where cannibalized gun parts are sold separately.
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