Mexico Catches Zetas Drug Capo 'El Taliban' Mexico appeared to strike a major blow against one faction of the hyper-violent Zetas cartel Wednesday night, with the navy announcing it had captured one of the country's most-wanted drug traffickers, Ivan Velazquez Caballero, known as "El Taliban." Velazquez Caballero has been fighting a bloody internal battle with top Zetas' leader Miguel Angel Trevino Morales, and officials have said the split was behind a recent surge in massacres and shootouts, particularly in northern Mexico. "A person who is presumed to be, and acknowledges being, Ivan Velazquez Caballero, was captured in the state of San Luis Potosi" in north-central Mexico, the navy said in a statement. Also known as "Z-50," Velazquez Caballero has a 30 million peso ($2.3 million) reward on his head. If confirmed, Velazquez Caballero's arrest could calm some of the brutal violence that has hit border cities like Nuevo Laredo, across from Laredo, Texas, in recent weeks. 14, eight men were found shot to death and one hanging from a bridge in Nuevo Laredo, territory traditionally controlled by Trevino Morales, alias "Z-40." Analysts say 14 bullet-ridden bodies stuffed in a van in mid-August in San Luis Potosi were men loyal to "El Taliban," left there as a warning by Trevino Morales' underlings. Discussing recent fighting, a U.S. official in Mexico who was not authorized to be quoted by name said earlier this week that "I think right now the uptick that I'm seeing is between '40' and '50'," referring to Trevino Morales and Velazquez Caballero by their "Z" aliases. The official said Velazquez Caballero appeared to have formed an alliance of convenience with the Knights Templar cartel based in southern Michoacan state for his fight with Trevino Morales. A number of banners signed by various elements of the Zetas and hung from overpasses in several Mexican states appeared to confirm mutual hatred between Trevino Morales and Velazquez Caballero. In the obscenity-laden banners, the two capos accused each other of betraying their fellow traffickers. If the man arrested as "El Taliban" is confirmed, the development could strengthen Trevino Morales, who shares leadership of the Zetas with Heriberto Lazcano, alias "El Lazca." The U.S. official played down recent speculation that Trevino Morales and Lazcano had also fallen out. "I'm not familiar with a fight between him (Trevino Morales) and Lazca," the official said. I think he and Lazca - Lazca is doing his thing and he is doing his, and they're still together from what I understand. A strengthened hand for Trevino Morales would be something few in Mexico want to see. Lawmen and even competing drug capos picture Trevino as a brutal assassin who favors getting rid of foes by stuffing them into oil drums, dousing them with gasoline and setting them on fire, a practice known as a "guiso," a Spanish word for "stew." The Zetas are already considered the hemisphere's most violent criminal organization. They have been blamed for a large share of the tens of thousands of deaths in Mexico's war on drugs, though other gangs also have repeatedly committed mass slayings.