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09/15/2011 03:21 pm ET | Updated Nov 15, 2011

Mexican Casino Fire: Alleged Zetas Member May Be Professional Fighter 'Voltaje Negro'

One of the alleged attackers of Monterrey's Casino Royale was both a policeman and a professional fighter, Mexican newspaper El Universal reports. José Alberto Loera Rodríguez, who fought professionally in various rings in Mexico, began his fighting career eleven years ago using the alias "Power Ranger." He later adopted the pseudonym "Voltaje Negro."

Today, the Attorney General of Mexico and officials from Nuevo Léon released photos of four more suspects. Six men implicated in the attack reportedly have been detained.

According to Univision, Voltaje Negro was known for violence and drug consumption. He is suspected to be a high ranking member of the Zetas cartel. The newspaper El Porvenir reported in Spanish: "The alleged criminal is considered the number three in one of the cells of an organized crime group headed by Francisco N, also known as 'El Quemado,' and Baltazar N, 'El Mataperros.'"

Dozens were killed when gunmen set fire to a crowded casino in Monterrey, Mexico, on August 26, 2011. A federal prosecutor charges that the owner of Casino Royale had ignored extortion threats before the deadly arson attack.

In the following video from El Universal, fans cheer for El Voltaje: