[silverleaf]

These are not all the weapons he had, police chief said he had an AR-15

So where did he buy all the SWAT gear (full body armor) and tear gas canister?

and where and when did he train in using the weapons and the tear gas equipment? You dont just go buy this stuff, load up, put on a gas mask, and go shoot 71 people in the dark

[grobdriver]

Smith and Wesson .233 high powered semi-automatic rifle

That is an AR-15.

Very generic term...

[Uri’el-2012]

These are not all the weapons he had, police chief said he had an AR-15

A Smith & Wesson M&P15 .223 Rifle
could be described as a AR-15.

[Elderberry]

The Chief probabably was describing the S&W rifle generically as an AR15. Just like these days everthing else seems to be called an AK47.

[AnAmericanAbroad]

The last time I went to a gun show in Portland, OR (about 4 years ago, admittedly when I was back visiting) you could find body armor and tear gas canisters for sale. Gas masks, too. Not to mention online. It’s not hard to find. Here in the Czech Republic, I can walk into a well-stocked gun store and find body armor and tear gas for sale quite easily. I can even buy tear gas canisters at some locksmiths booths here in town.

As for the training, that’s a hell of a good question. Like you said, you just don’t load up, put on a gas mask and start shooting people in the dark. That requires some amount of prior training, I would speculate.

[paul51]

most movie houses aren't pitch black and it probably doesn't take a whole lot of skill to shoot people indiscriminately with semi automatic weapons in a crowded theater.

[TheBigJ]

One can buy all that online.

[nikos1121]

I’ve been putting off buying a gun. I live in a right to carry state. Any suggestions? I’m thinking a 7mm Glock? And you’ll be damn sure I’ll learn how to use it.

Only ONE, just ONE solution. If enough people are armed this king of thing won’t happen.

[Osage Orange]

I'm guessing they called the .233 an AR-15

http://www.budsgunshop.com/catalog/product_info.php/products_id/36913