Today is the anniversary (if you can call it that) of the "Rodney King" riots here in La-La Land.
BonnieGadsden ran a series on it a couple of weeks ago, based on a series of forum posts by Texas Arcane long before there were blogs.
While there's been some "discussion" over the accuracy of the original posts, the important thing is to get the gist of it, and not quibble over some of the technical details.
This IS what will happen when TSHTF out here, and in every other big city.
Doesn't matter if it's caused by some "injustice", the power grid going down, a Massive Solar Flare or an EMP, or the total collapse of the U.S. economy. The cause of it will only partly determine the amount of time it takes to start and get up to speed.
And if the government is "down" or "off-line", it won't settle down until the damage and casualties reach absolutely staggering levels.
Be prepared, it will come sooner and faster than you think.