You just may not be paying attention. It happens sometimes.
Security forces keep up fight with cartel gunmen a day after the Mexican military killed a drug lord
https://fox40.com/news/international/ap-international/ap-mexico-fears-more-violence-after-army-kills-leader-of-powerful-jalisco-cartel/
Could be an acquaintance.
Powerful cartel boss killed had Sacramento ties
https://fox40.com/news/california-connection/powerful-cartel-boss-killed-had-several-california-ties/