El Metro 4

Héctor David Delgado Santiago (23 December 1975 – 15 January 2013), commonly referred to by his alias El Metro 4, was a suspected Mexican drug lord and high-ranking leader of the Gulf Cartel, a criminal group based in Tamaulipas. Born and raised in Matamoros, Tamaulipas, El Metro 4 initiated his criminal career by working with Los Metros, an enforcer gang of the Gulf Cartel.

After several years, his position in the cartel grew, and he later became the regional leader in Reynosa, Tamaulipas and the right-hand man of the drug lord Mario Ramírez Treviño. Although no official reports have been released, several media outlets alleged that El Metro 4 was found dead in Reynosa on 15 January 2013. The motives behind his murder are still unknown, but the two prevailing theories suggest that he was killed by the rival gang Los Zetas or betrayed by members of his own cartel.

Criminal career Héctor David Delgado Santiago was born and raised in the Mexican border city of Matamoros, Tamaulipas on 23 December 1975.

Aftermath On the night of 10 March 2013, a three-hour gun battle broke out between alleged rival factions of the Gulf Cartel in the streets of Reynosa, Tamaulipas. Government reports suggest that two innocent civilians were killed in the crossfire, but a law enforcement official with direct knowledge of the incident indicated that at least 36 people were killed; the number may even be higher, considering that Gulf Cartel gunmen managed to pick up the bodies of their fallen soldiers. Large armed convoys of over a dozen vehicles with the signs "M4" were seen throughout the city.

According to Valor por Tamaulipas, the shootout was caused by a power struggle within the Gulf Cartel, which skyrocketed with the death of El Metro 4. Borderland Beat indicated that Los Metros gang of the Gulf Cartel experienced several disputes with Miguel El Gringo Villarreal and El Commandante Puma, leaders of another group within the cartel. Although no official reports exists, there are rumors that El Commandante Puma were killed in the gunfight.