In “When the Breakdown Hit at Midnight,” El Banquero is at the bottom of his pool, which is something he does when stressed out emotionally. He emerges and asks for a towel. However, the person poolside his actually Luisa Espina/Adelita. She delivers a message from El Banquero’s sister, Soledad, and slits his throat. He bleeds out in the pool, and Adelita then walks over to Soledad.
Earlier in Mayans M.C. Season 4, El Banquero’s mother died, which caused him to become unhinged and tell Soledad he was taking sole control of the cartel. However, Soledad instead recruited Miguel Galindo, and together they planned their next move against him. It’s not clear at this time just why Adelita was involved with the plot, but it’s likely related to the favor Lincoln Potter alluded to when he confronted her in “The Calling of Saint Matthew.”
Played by Guillermo Garcia, El Banquero is credited as having made his debut as the character in Mayans M.C. Season 3, Episode 5, “Dark, Deep-Laid Plans.” The mercurial and deadly cartel leader appeared in more than a half dozen episodes across Seasons 3 and 4. Outside his work as El Banquero, Garcia played Enrique Vazquez in Welcome to Acapulco and is slated to play Joel Veracruz in Lambs Among Wolves.
Co-created by Elgin James and Kurt Sutter, Mayans M.C. is a spinoff of Sons of Anarchy, which ran from 2008 until 2014 on FX. The show debuted in 2018 and has since aired four seasons. Mayans M.C. focuses, in general, on the Santo Padre chapter of the titular motorcycle club, which is located on the border of California and Mexico. More specifically, the show follows Ezekiel “EZ” Reyes. Originally starting out as a prospect, EZ has since gone on to become the Vice President of the Santo Padre charter.