The man suspected of being the Gulf drug cartel's top money man in the northeastern Mexican state of Tamaulipas has been found dead, the Navy Secretariat said.

Cesar Davila Garcia's bullet-riddled body was found by marines inside a house, thanks to a tip from the public.

Davila was suspected of being the accountant for Antonio Ezequiel Cardenas Guillen, known as "Tony Tormenta," who was killed in a shootout on Nov. 5, 2010.

He ran drug sales in the port city of Tampico and was later sent by the cartel to Matamoros, located across the border from Brownsville, Texas, where he "allegedly and newly served as the Gulf cartel's main financial operator," the secretariat said.

The Gulf cartel has been waging a war in northeastern Mexico against Los Zetas, a band of Mexican army special forces deserters turned hired guns and drug traffickers.

After several years as the armed wing of the Gulf cartel, Los Zetas went into the drug business on their own account and now control several lucrative territories.

The Gulf cartel was founded by Juan Nepomuceno Guerra in the 1970s and was later led by Juan Garcia Abrego, who was arrested in 1996 and extradited to the United States.

Osiel Cardenas Guillen later became the Gulf cartel's undisputed boss.

Cardenas was arrested in 2003, but he continued running the Gulf cartel, one of the most violent and powerful criminal organizations in Mexico, until his extradition to the United States four years later.