An argument between two dads that began in the Blount Elementary student dropoff lane ended with gunfire, a gun inside the school, the school on lockdown and one father charged, police and school district spokespeople said.

Isaiah Johnson Jr., 38, was charged with certain person forbidden to carry a pistol and discharging a firearm into an occupied vehicle, Montgomery police Sgt. Jarrett Williams said. According to Alabama state law, a person can be charged as a person forbidden to possess a firearm if he or she possesses a deadly weapon with the intent to do bodily harm while on the premises of a public school.

Johnson was booked into the Montgomery County Detention Facility with a combined $30,000 bond on the Class C felonies.

One man, later identified as Johnson, pulled a gun about 7:26 a.m. Thursday, and he shot at the other man after the road rage incident in the car line where parents drop off their children, Department of Public Safety Spokeswoman Martha Earnhardt and Montgomery Public Schools spokesman Tom Salter said. The gunfire damaged the other dad's vehicle, according to Williams.

The entire incident was caught on video surveillance, Salter said.

Johnson ran inside the school after firing the weapon and put the gun on the front office counter, Williams said. A school staff member picked it up and put it in the school safe before police arrived. The two fathers remained at the school until police arrived.

Both fathers were detained following the incident. The second father, who was initially detained, was later released after it was discovered that he did not possess or fire a weapon during the incident, Williams said.

No one was injured, Earnhardt said. The students were taken inside the school to safety, a law enforcement spokeswoman said.

Kenyatte Hassell, a friend of Johnson since childhood, said the dad had been under a lot of emotional stress leading up to Thursday incident.

"He's not a bad guy," he said.

Johnson's wife, Denise Johnson, died recently and was buried on Saturday, Hassell said. He's also been diagnosed with post-traumatic stress disorder, Hassell said.

"His mother died at a young age, about the same age his wife was," Hassell said. "His dad is also sickly and he's trying to take care of his two sons. It's a lot of pressure on him right now."

Hassell said Johnson's situation doesn't excuse what happened, but he wanted to explain why he was so quick to anger.

"I just want people to know he's not bad. I just wanted to let people know his side of the story," Hassell said.

It was the third day of classes for MPS campuses. Salter said only about 150 students were present for the entire day of school, about one third of total enrollment at Blount Elementary.

The school was put on a "soft lockdown" after the fight, meaning classes operated as normal and physical education classes were inside.

Montgomery Public Schools Superintendent Ann Roy Moore sent a voicemail to parents of all students Thursday afternoon that addressed the shooting as well as dispelling rumors of who was involved in the fight.