Career
He was accused of murdering three young women. He committed suicide by hanging shortly after being captured and admitting to the crimes. A native of Mérida, Yucatán, Mario Sulú was a plumber by trade.
He was born in a dysfunctional family, and struggled to keep stable employment.
As a teen, Sulú committed various criminal offenses including, theft and sexual harassment. In July 2007, Sulú raped and murdered a 15-year-old high-school girl named Alma Lucely Canul Ciau.
He took her to a remote location, struck her with a log, and threw her body in the sea. In January 2008, Sulú killed his second victim, another teen woman named Leydi Marlene Canul Pech.
He also took her to a secluded area, raped and strangled Pech, burying her remains near the highway.
On July 28, 2008, Sulú killed his last victim, Guadalupe de los Ángeles Rodríguez Méndez.