
Internal wars between drug cartels have long been marked by betrayals on both sides.
One of the most notorious cases in Mexican organized crime involved the Beltrán Leyva brothers and the Sinaloa Cartel. After Alfredo Beltrán Leyva was arrested in 2008, his brothers Arturo, Héctor and Carlos broke with the cartel, accused Joaquín "El Chapo" Guzmán of alerting authorities, and orchestrated the murder of El Chapo's son, Édgar Guzmán López.