Narco gangs in Mexico and the underlying feuds within rivals run deeper than Hatfield-McCoy enmity.
Tied up and with nowhere to run or to hide, blindfolded man is bludgeoned to death by plank wielding rival. The clubbed seal fate this man had to suffer was only two skull-shattering blows before succumbing towards deaths door. The third stroke was undoubtedly death inducing while the fourth final bash against skull was just-to-make-sure. All I have to say about all of this is at least the victim was permanently dreaming before earning full body dismemberment; as is tradition in Mexico drug wars before or after murder.