Snippet from your article link in post no. 5:
http://www.valleycentral.com/news/story.aspx?id=806215#.UxrxrtzoZGM
“Arrest of Zetas leader ‘El Taliban’ confirms split within cartel”
by Sergio Chapa
Posted: 09.27.2012 at 11:39 AM
SNIPPET: “The Mexican Navy (SEMAR) confirmed marines arrested 42-year-old Ivan Velasquez-Caballero in the City of San Luis Potosi on Wednesday evening.
Velasquez-Caballero was a high-ranking member of the Zetas and went by the nicknames Z-50, L-50 and El Taliban.”
SNIPPET: “The incident ended with arrests of Velasquez-Caballero as well as 27-year-old Manuel Antonio Guerrero and 19-yaer-old Carlos Uriel de Santiago-Hernandez.”
http://www.themonitor.com/article_2defd3b6-a55a-11e3-8252-0017a43b2370.html
“Zeta member ‘El Taliban’ set to appear in court”
Posted: Thursday, March 6, 2014 12:45 pm
Ildefonso Ortiz | The Monitor
McALLEN –
SNIPPET: “Velasquez Caballero went from being a local car thief in Nuevo Laredo to being one of the most feared Zeta bosses in Mexico. He was arrested by Mexican marines working with intelligence from the U.S. Drug Enforcement Administration in the Mexican state of San Luis Potosi on September 26, 2012, Mexican court records show.”
SNIPPET: “Velasquez was extradited to the U.S. in November and made his initial appearance on November 22; it remains unclear why the case was transferred to McAllen.”