Terrorism & Security Double blow to Mexico's Zetas? Top man Lazcano reportedly killed, another captured

The Mexican Navy reports there are 'strong indications' that marines killed Zetas top man Heriberto Lazcano. Could this mean the end for the Zetas, or trigger more violence?

Mexico's Attorney General's Office/AP/File

In an apparent double blow to Mexico's most notorious drug cartel, Mexican authorities said they believed they have killed the leader of the Zetas gang and captured a high-ranking lieutenant wanted for more than 300 murders.