Updated at the bottom with a response to the allegations from San Bernardino County Sheriff-Coroner John McMahon. First posted at 1:39 p.m.

Not long after a cabin where Christopher Dorner was believed to be holed up was reduced to ashes did the twittersphere erupt with a incendiary conspiracy theories of its own.

Led by hacker group Anonymous, some folks allege that San Bernardino County Sheriff's deputies, who lost one of their own yesterday in a shootout, set the cabin on fire purposefully.

They linked to police scanner audio of the standoff to prove their point:

At times cops are heard saying:

… We're gonna go forward with the plan, with, er, with the burn. We want it, er, like we talked about. … Seven burners [tear gas canisters] deployed and we have a fire.

And:

We're going to burn him out … Burn this motherfucker!

(That last quote can be heard during Carter Evans' CBS Los Angeles report from the middle of a shootout).

One blog post is headlined “LAPD pulls 'Waco' on Christopher Dorner,” (although it appears that the standoff was led by San Bernardino deputies).

Cops told the Los Angeles Times that incendiary CS gas canisters were indeed used on purpose after “traditional” tear gas didn't seem to do the trick.

That hasn't seemed to appease the conspiracy theorists:

[Update at 4:23 p.m.]: At a news conference today San Bernardino County Sheriff-Coroner John McMahon said that his deputies did not try to set the cabin — and thus Dorner — on fire on-purpose.

He told reporters:

It was not on-purpose. We did not intentionally burn down that cabin to get Mr. Dorner out. … Then we used [tear gas] that does generate a lot of heat. We had introduced those canisters into the residence, then a fire erupted.

The pyrotechnic-type canisters are commonly referred to as burners.

[@dennisjromero / djromero@laweekly.com / @LAWeeklyNews]

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