This is what happened in France, what happened in Russia, and what has happened in many other cases. It is not an ideological phenomenon, has nothing to do with communism, and it happens because a society refuses to reform for so long that the system collapses under its own corruption. We are heading down that same path by refusing to institute moderate reforms while we still have the option to do so.
And of course, the chaos of revolution is not the only way for a vicious tyrant to gain power and institute a reign of terror...