Officials at the Supreme Court and Metropolitan Police Department would not identify the kind of gun found, but a senior federal law enforcement official said it was a loaded MAC-10 assault weapon. It is capable of firing many bullets over a wide area in a few seconds. The official spoke on condition of anonymity because the investigation is ongoing.
So is it semiauto or select fire?
Something about this isn't right. I've got nothing to go on here but instinct, so there's an excellent chance I'm all wet, but wouldn't it be interesting if the MAC-10 traces back to a department or agency, and it being left in a parking lot turns out to be another example of professionalism?