EXCLUSIVE: Third Gun Linked to 'Fast and Furious' Identified at Border Agent's Murder Scene :: 09/10/2011

A third gun linked to "Operation Fast and Furious" was found at the murder scene of Border Patrol Agent Brian Terry, new documents obtained exclusively by Fox News suggest, contradicting earlier assertions by federal agencies that police found only two weapons tied to the federal government's now infamous gun interdiction scandal.

Sources say emails support their contention that the FBI concealed evidence to protect a confidential informant. Sources close to the Terry case say the FBI informant works inside a major Mexican cartel and provided the money to obtain the weapons used to kill Terry.

Terry was fatally shot north of the Arizona-Mexico border while trying to catch bandits who target undocumented immigrants, the leader of a union representing agents said Wednesday, Dec. 15, 2010.

Unlike the two AK-style assault weapons found at the scene, the third weapon could more easily be linked to the informant. To prevent that from happening, sources say, the third gun "disappeared."

In addition to the emails obtained by Fox News, an audio recording from a Bureau of Alcohol, Tobacco, Firearms and Explosives agent investigating the Terry case seems to confirm the existence of a third weapon. In that conversation, the agent refers to an "SKS assault rifle out of Texas" found at the Terry murder scene south of Tucson.