Port Richey, FL - On Monday, the Pasco County Sheriff's Office released body-cam video about a gunfight from Thursday afternoon.
The school was supposed to dismiss at 4 PM, but went into lockdown as deputies surrounded the school, believing that Brian DiSario might come out of the garage with more weapons.
It started when DiSario fatally shot David Armstrong, age 56, who he believed was making advances toward his imaginary girlfriend.
Armstrong was a friend of his mother.
Pasco County Sheriff Chris Nocco said, "In his mind, he did. But in reality he did not."
DiSario shot Armstrong in the garage, then went inside the residence, got a different gun, went back and shot Armstrong again.
Deputies responded to a 911 call from a woman believed to be DiSario's mother, who told dispatchers that she was in the garage, and that her son was the shooter.
The woman said, "Just get an ambulance here quickly. My son shot someone. He is schizophrenic. Please get the officer and ambulance here now. He's got a loaded gun."
She can then be heard in the call screaming "No," and "Hurry." The woman then described her son, who was later identified as Brian DiSario, age 30, and said, "Oh, God, he's outside with the gun."
When Pasco County Deputy Sheriff Nick Carmack and Pasco County Deputy Sheriff Michael Sudler arrived, they approached the residence with guns drawn, and saw DiSario outside of the residence.
One deputy shouted, "Hey bro, put your f***ing hands up."
In response, DiSario fired 10 shots at them with his rifle.
Officers returned fire.
As Deputy Carmack and Deputy Sudler were retreating, one deputy again yelled at him to put his hands up. A deputy can also be heard asking for his shield from the truck.
A gunfight ensued, and DiSario was later found dead. It is believed that he committed suicide. He was reported to have a long history of mental illness.
No deputies were injured.
Sheriff Nocco said that "the shootout broke out on the road that parents use to pick up their children from school."
"There's shell casings scattering that ground. It was an absolute gunbattle in the middle of the street."
DiSario was found in possession of a Core 15 CXV AR-15 rifle and a .22 rifle.
You can see the video of the gunfight below: