Im curious how he got a fully automatic weapon in that room and all the ammunition.
From listening to the shots from TV news from someone there with cell phone video you can hear how rapid the shots came out of the gun.
I am familiar with the sound of weapons going off from going to a gun range and I can say for sure it was fully automatic weapon. The other interesting thing is the number of rounds before he had to reload was a lot of rounds. So I dont think it was a regular clip.
A regular clip of shells would not allow that many bullets to be fired all at once like we heard. Which means I think he either had a round "Drum magazine" or a string of shells all clipped together in a long string.
The link below shows what a drum magazine looks like.
https://www.xproducts.com/product-category/high-capacity-drum-magazines-223-556-308-9mm/
These mostly hold around 50 shells. But they do make double drum magazines too which double that to 100 rounds. Shown below is a double drum.
https://www.classicfirearms.com/ar15-m16-100rd-dual-drum-mag
The only other way I think he could have done it is with belt ammunition where all the shells are linked together in a long belt. The ammunition would be all linked together and bought that way and just layed off to the side as it got fed into the gun. It would not really be a clip at all but just a long belt of shells. Shown in link below shows 100 rounds pre-linked in a belt.
http://ammunitionstore.com/products/308-7-62x51-ammo-147gr-fmj-ggg-100-rounds-linked-for-m60.html
Those are the only two ways I can think of to be able to fire that many shells all at once. We hear him reload and start again and he would either change the drum magazine out with another fully loaded drum. Or another belt of shells.
He must have had the extra drums or extra belts all ready to go because he was able to fire again quickly after he ran out of shells. He was able to reload quickly which means he had these other drums fully loaded already or had extra belts of ammunition ready to go.
My guess is he used one of these two methods and had them all ready.
