Re: Colorado shootings: Police ‘sure as hell’ angry at booby trap

[G. Morgan <G_Morgan@xxxxxxxx>]

Gunner Asch Wrote:

>On Tue, 24 Jul 2012 02:55:14 -0500, G. Morgan <G_Morgan@xxxxxxxx> wrote:
>
>>[xposted to alt.security.alarms]
>>
>>Gunner Asch wrote:
>>
>>
>>><VBG>...your diversion is noted.  <VBG>
>>>
>>>In normal nomenclature..the bullet is considered to be the projectile.
>>
>>True.  That's why I was very careful not to write 'bullets', but I still
>>got blasted! <g>  I was also counting what other junk (nails, etc..) he
>>may have thrown in there.
>>
>>BTW:  Something just got me thinking.  I am still wondering about the
>>fire alarm.  You said normal mil/police smokes and tear gas stays low to
>>the ground, and I could see why that's desirable.
>>
>>Do we know if he used mil/police grade smoke grenades or were they
>>improvised?
>
>Id say he used commercial. Its hard to make a pull/toss igniter that
>works every time.  And the jury is still out if it was tear gas or not.
>If it was..it WAS commerical. Which is easy enough to buy, though a  bit
>expensive.
>>
>>Also, wouldn't enough smoke from a few gunshots be sufficient to rise
>>and break the smoke beams?  I don't know how many particles (or their
>>size) are emitted in 'smokeless powder' - but I'm sure there is some.
>>I've always seen .233's shot outdoors, and never paid attention to any
>>muzzle smoke.
>
>Naw...it would take a LOT of shots of smokeless powder to generate
>enough particulates to trip most smoke detectors in a very large room..
>More than 70 rds. YMMV of course. Strictly my opinion and based on just
>gut feeling.
>
>And one has to assume that the air conditioning was running, blowing
>cold air down at the crowd...which would tend to keep anything "heavy"
>close to the deck.

Wouldn't the return air be up top, and supply air somewhere in the
middle or lower parts of the walls?  I don't remember.