José Antonio Yépez Ortiz

José Antonio Yépez Ortiz, known as El Marro, The Sledgehammer he served as the leader of the Santa Rosa de Lima Cartel (CSRL), a criminal group based in Guanajuato, Mexico. He was wanted by the Government of Mexico for his active participation in fuel theft. By June 2020, El Marro lost most of their "soldiers" and some territory but they still maintain presence in cities such as Celaya, Cortazar, Salamanca, Juventino Rosas, Santa Rosa de Lima, San Miguel Octopan, Villagrán, Apaseo El Alto and Apaseo El Grande. They are active in organized crime,

Career El Marro began his criminal career in 2010, when he directed the transfer of drugs and theft of vehicles. Since January 2018, the Armed Forces initiated a search to find and capture him. Since February, The Navy has cornered him several times, but he has managed to escape law enforcement through various maneuvers including narcoblockades. In 2019, he formed an alliance with an armed wing of the Gulf Cartel called Special Forces Grupo Sombra to counter the Jalisco New Generation Cartel and to contest Guanajuato's plazas.

In July 2019, authorities froze more than $35 million from different accounts belonging to El Marro and the Santa Rosa de Lima Cartel. Authorities have also confirmed the desertion of some of Santa Rosa de Lima Cartel's main operators; 14 properties and 129 vehicles have been seized.

On June 11, 2020, Óscar Balderas, a Mexican journalist and expert in organized crime, revealed to Insight Crime journalist Victoria Dittmar that government and a turf war with the rival Jalisco New Generation Cartel (CJNG) resulted in the Santa Rosa de Lima Cartel losing a significant amount of land in Querétaro, Hidalgo and even their native state of Guanajuato. Those arrested had arrived to receive their weekly payroll. It was also revealed that the CJNG was struggling to gain influence in territory controlled by the Santa Rosa de Lima Cartel. At least five other people were detained in the joint operation as well, and a businesswoman who had been kidnapped was rescued.