Cincinnati police have a room full of guns all recovered during criminal investigations. Last year more than 1250 were taken off the streets. But few were as memorable as the weapon recovered after an armed robbery outside a restaurant in Roselawn Monday night. The man who's accused of using the MP-9 sub machine gun during the hold up is 18 year old Brandon Wilson. The weapon will be analyzed not only as part of the Reading Road investigation, but also to find out where it came from. The sub-machine gun's serial numbers were scratched off. Lt. Kurt Byrd tells FOX 19, "That doesn't necessarily mean that we can't obtain serial numbers through other ways and other means and scientific methods." Brandon Wilson is being held without bond. Police say he has a juvenile conviction for bringing a weapon to school.