One might hope that the death of Heriberto Lazcano, or "El Lazca," together with the recent capture of Said Omar Juárez ("El Peluso"), a man close to Miguel Ángel Treviño Morales ("Z-40"), could point to the nearing end of the violent drug cartel Los Zetas. It could, but in reality, it is a far-fetched, unrealistic conclusion.

This is "Mexican Drug Blood," a regular feature on the deadly Mexican drug wars. Here, the story behind the murder of Zeta cartel boss Heriberto Lazcano.

This is "Mexican Drug Blood," a regular feature on the deadly Mexican drug wars. Here's a rundown of the deadliest cartels involved in Mexican's ongoing drug war.

This is "Mexican Drug Blood," a regular feature on the deadly Mexican drug wars.

This is "Mexican Drug Blood," a new regular feature on the deadly Mexican drug wars.

This is "Mexican Drug Blood," a new regular feature on the deadly Mexican drug wars.

Since Felipe Calderon took office in late 2006 and launched an assault on drug cartels, somewhere in the neighborhood of 60,000 people have died violently in that nation's drug war. It is not going well, in any sense.