My heart goes out to the parents who will be burying their children in the coming days.
I hope that something positive can come of this tragedy.
Virtually ever Cinema will have an alarm system for when it is truly shut down for the night. That would include a sensor on every door to begin with. So having it also as able to register just as "open" during normal hours is not a stretch.
The easiest way to prop one open is such as a piece of wood. All these doors have the panic bar, which begins to engage once the door is closed to within about 1/2". The open alert is simply a pair of magnets at the top, which enable/disable a circuit. Had Holmes scoped it out first, say earlier in the week, he may have tested such, that is seeing if he could prop it open, and if anyone reacted after 5-10 minutes. Or, if he checked closer, most panic bars have a hole, in which you can insert an allen wrench, and once depressed in the "open" or "unlocked" position, then lock the bar open with a half-turn. It is still potentially a little problematic to open from the outside, as it closes flush, and there is no handle. But it would register as "closed" while also being unlocked.
I suspect that the theater had the magnetic sensors on the doors, and a system which indicated that the door was open. That is more standard than not. And that they didn't notice, perhaps understaffed with the midnight showings, or not paying attention, etc.
Last edited by Eighty Deuce; 07-24-12 at 04:03 PM.
I knew some people who owned a restaurant. They had prisoners that got bussed in from the prison worked 8 hours and got bussed back for a work release program. All the money they earned they got when released. A few of the guys got their jollies with a few of the waitresses during their breaks. Admittedly these were not murders, but some were convicted of grand theft and garnishing a weapon.
Isn't that nice?
What more could they want?
A place to sleep free- check
Food for free - check
A/C and TV free - check
Fitness center free - check
Job - check
Sexual desires satisfied - check
Maybe not ALL inmates are this lucky, but the fact that this occurs at all is appauling.
criticizing media since the invention of idiocracy
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A semi-automatic can be defined by a weapon that reloads after firing one round with each trigger pull. A slow acting revolver is a semi-automatic. A Glock with a magazine is a semi-automatic. An M4 rifle is a semi-automatic.
An automatic can be defined by a weapon that fires multiple rounds per trigger pull. A military grade machine gun will fire every round in the belt or magazine as long as the trigger is depressed (though it will jam up so the 3-5 round burst applies).
A bolt action is neither. It is "moot." So is a musket.
Incidentally, even our military M4s and M16A4s are both. They are semi-auto until you switch the "selector switch" to BURST. Both rifles then spit out three rounds per trigger pull. It is a waste of ammo since round 2 and 3 are off target, but it does create cover fire for troops on the move.
But back to the Joker.....he would have been deadlier at close range like that with a glock pistol. His magazine reload would have been after 10 or 14 rounds depending on the model.
What separates the M4 from military use is the grade of the round. 5.56 is ammo for military. It is illegal to use in the civilian world. Ranges are only authorized to sell and allow .223 It's a lower grade round with far less punch. Don't know which SWAT uses.
Last edited by MSgt; 07-24-12 at 04:40 PM.