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.