Gilbert Cosme Ramírez is a Puerto Rican professional wrestler, better known by his ring names El Mesías, Mil Muertes, Ricky Banderas and King Muertes. He began his career in the International Wrestling Association based in Puerto Rico. While performing in the company, he won the IWA World Heavyweight Championship on five instances and held minor championships on fifteen separate occasions, before leaving the company in 2006. On March 12, 2006, he debuted in Lucha Libre AAA Worldwide (AAA), a promotion based in Mexico, as a character named Muerte Cibernetica and was involved in an angle where this character was "killed". In November 2006, Cosme was involved in the tapings of the Wrestling Society X television series, where he was the second and last wrestler to win the WSX Championship.

The International Wrestling Association is a conglomerate of professional wrestling promotions that originated in Puerto Rico and currently operates there. Founded in 1994 by wrestler promoter Víctor Quiñones and wrestler Miguel Perez Jr. it quickly entered an agreement to serve as a development territory for the World Wrestling Federation that lasted until 2001. During its first decade, IWA grew to rival the long-standing World Wrestling Council (WWC). Its business model relies on pushing younger talents, using veterans and foreign wrestlers to get them over with the public.