Edgardo Leyva Escandon, alias '24'

Edgardo Leyva Escandon, alias '24,' has worked with Mexico's Tijuana Cartel, also known as the Arellano Felix Organization (AFO), since 1994, and is a specialist in arms and security.

According to the U.S. government, Leyva has worked as a sniper, contract killer and arms supplier for the group.

Resources