UPDATE:

A family member confirms that the suspect, Doyle Herron, once drove a school bus in Bradley County. He also claims to be a bus driver on his Facebook page.

Bradley County Schools confirmed to us on Wednesday that he is not a current employee.

We continue to work to learn more.

EARLIER:

A Bradley County man is facing charges for threatening a Walmart, firing a gun, and then resisting arrest Tuesday, according to the Bradley County Sheriff's Office (BCSO).

They say deputies responded to the Walmart off of Treasury Drive around 5p.m.

BCSO say caller reported to 911 that the suspect was armed with a gun and making threats of violence toward the store, saying he was going to "take the place by storm."

Once deputies arrived, BCSO say they found Doyle Herron apparently shooting a gun in the air in front of the store before getting in a car parked inside.

BCSO say Herron still had the firearm in his hand when deputies arrived, but later put it on top of the SUV. An arrest report says he was laughing when an officer approached him.

He exited the vehicle, but refused all further commands from officers, according to BCSO.

A physical altercation took place when deputies tried to detain the man. BCSO say a stun gun was deployed, but had little effect on Herron.

BCSO say Herron was taken into custody after more officers arrived to help subdue him.

This video from a viewer shows the confrontation between the man and deputies as they arrested him:

Herron is charged with reckless endangerment, aggravated assault, resisting arrest and aggravated assault against a first responder.