NEW All the previous shots came from the same weapon , authorities said . : The the Marine Corps says the shooter probably has grievance against the Marine Corps museum . NEW : Federal officials say they want to speak with the shooter about complaints . It is the second attack on the Marine Corps museum in recent days . Two other military buildings in the Triangle area also have been fired upon .
NEW : The the Marine Corps says the shooter probably has grievance against the Marine Corps museum . NEW : Federal officials say they want to speak with the shooter about complaints . It is the second attack on the Marine Corps museum in recent days . Two other military buildings in the Triangle area also have been fired upon .