"Polite and soft-spoken, Murillo is believed to have disposed of 600 victims on behalf of the Santa Blanca cartel."
— In-game Description.

Raul Murillo, also known as El Pozolero (The Stewmaker), a socially awkward hermit, very shy and self-conscious, El Pozolero has the emotional range of a child. He doesn't really understand right and wrong.

He worked in construction until he lost his job, then he got hired by the Santa Blanca Drug Cartel, which taught him how to dissolve bodies when they discovered he had a strong constitution for it.

The cartel delivers dead bodies that need to disappear. Wearing latex gloves and a gas mask, El Pozolero places the bodies in oil drums with caustic soda (sodium hydroxide) then stirs them for 24 hours until they turn to liquid. He dumps the 'stew' and crushes up the remaining bones and teeth.

He's never really hurt anybody, but has probably melted about 600 bodies.

In game, El Pozolero is quite a nervous character. If he sees a Ghost coming at him, he will certainly try to run to save his life rather than directly assaulting the player, hence the interest in capturing him undetected.