According to federal court documents, agents of the Bureau of Alcohol, Tobacco, Firearms and Explosives identified Martinez as a frequent seller of stolen firearms in online chat groups.

Short-barrel firearms include rifles with barrels shorter than 16 inches and shotguns with barrels less than 18 inches, according to the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF).

Police spokesperson Kris Mumford told the Banner on Wednesday that the department continues “work with (Bureau of Alcohol, Tobacco & Firearms) resources on that aspect of the investigation.” ...

They noted that the Bureau of Alcohol, Tobacco & Firearms is also working with the MNPD to find out where the gun Henderson used in the attack came from and how he got it.

Police said the Bureau of Alcohol, Tobacco & Firearms (ATF) is working with MNPD to determine the origin of the gun Henderson used and how it came into his possession. Police said they knew the ...

The gun used in a fatal Nashville school shooting was purchased in Arizona, police said on Thursday afternoon. On Wednesday morning, 17-year-old Solomon Hendersen opened fire in Antioch High ...

The origin of the gun used by Henderson is also under scrutiny, in a collaborative effort between the MNPD and the Bureau of Alcohol, Tobacco & Firearms (ATF).

The late Antioch High School shooting suspect, Solomon Henderson, 17. | YouTube/FOX Nashville A 288-page diary police believe was created by 17-year-old Solomon Henderson, who fatally shot one student ...

Nashville investigators say they believe the teenager who opened fire in a high school and killed a girl before killing himself was influenced by material found on "harmful" sites.

Authorities in Nashville have released further updates regarding the school shooting tragedy at Antioch High School on Wednesday.

Police said the Bureau of Alcohol, Tobacco & Firearms (ATF) is working with MNPD to determine the origin of the gun Henderson used and how it came into his possession.