DALLAS – Three Lancaster residents have been arrested by agents with the Bureau of Alcohol, Tobacco, Firearms and Explosives, assisted by other state and local law enforcement, on federal firearms charges outlined in two complaints, announced U.S. Attorney James T. Jacks for the Northern District of Texas and Special Agent in Charge Robert R. Champion of the ATF’s Dallas Field Office.

Ranferi Osorio, 27, and his brother, Otilio Osorio, 22, were arrested this week at their home on East Colonial Drive in Lancaster. Each Osorio brother is charged with possessing firearms with an obliterated serial number.  Separately, according to information contained in one complaint, Mexican officials recently seized three firearms that were used in the Feb. 15 deadly shooting of a U.S. Immigration and Customs Enforcement agent. One of the firearms recovered was traced by ATF to Otilio Osorio, authorities said.

An additional defendant, Kelvin Leon Morrison, 25, who is charged in a separate federal criminal complaint, was arrested at his home next door to the Osorio brothers. Morrison is charged with knowingly making false statements in connection with the acquisition of firearms and dealing in firearms without a license.

According to court documents filed in both cases, a Dallas ATF confidential informant arranged a meeting in early November 2010 with individuals who had firearms to be transported from Dallas to Laredo. The meeting was arranged related to an investigation of Los Zetas, a notoriously violent and ruthless drug trafficking organization. The weapons in question were ultimately seized by U.S. law enforcement near Laredo, before crossing the U.S./Mexico border.

According to one affidavit filed in the case, one of the three firearms used in the Feb. 15, 2011, deadly assault of Zapata that was seized by Mexican officials has been traced by ATF to Otilio Osorio. 

Otilio Osorio allegedly purchased that firearm on Oct. 10, 2010, in the Dallas/Fort Worth metroplex, prior to law enforcement’s awareness of the purchase. Ballistic testing conducted by Mexican authorities on this firearm indicated it was one of the three firearms used during the deadly assault on Zapata’s vehicle.

If convicted, the penalty for possessing a firearm with an obliterated serial number is five years in prison and a $250,000 fine, per count. The penalty for knowingly making false statements in connection with the acquisition of firearms is 10 years in prison and a $250,000 fine, per count. The penalty for dealing in firearms without a license is five years in prison and a $250,000 fine, per count.