Michael W. Braden, 45, a Sergeant First Class and 27-year veteran of the Tennessee Army National Guard, was shot and killed inside the National Guard armory in Lobelville, Tennessee on July 9, 2014. Braden had served two tours in Kuwait and was overseeing daily operations at the armory when the shooting occurred. He is survived by his wife and three children.

A 15-year-old local boy, Christopher C. Farrar, was taken into custody the same day at his family’s home and charged with criminal homicide. Investigators searched Farrar’s residence, recovered several firearms, and conducted ballistic testing to determine whether any matched the murder weapon. Reports said Farrar had been expelled from a Springfield-area school for a drug-related offense and allegedly expressed a desire to make history; a Perry County judge ordered he be tried as an adult and a grand jury later indicted him on one count of first-degree murder.

How Farrar gained access to the locked armory remains a key question. Does anyone have information about security at the Lobelville armory or observations from July 9, 2014?