Simpkins was charged with aggravated assault with a deadly weapon. He has been granted home detention under GPS surveillance. In addition, he was forbidden to have firearms and banned from communication with people who were injured during the shootout.
Simpkins is facing 20 years in prison if the justice finds him guilty.
Simpkins' family has reported that George had been bullied for a long time for his wealthy family, fancy clothes, and car, thus the teenager bought a gun to protect himself.
At least four people were wounded following a shooting at Texas school on Wednesday
It’s been reported that Simpkins got into a fight with another student when he took out the gun and opened fire. The police said that the 15-year-old schoolboy’s condition was critical.
A 25-year-old English teacher who attempted to break up the fight was shot in the back, according to police and his family.
The conditions of other victims were reported stable and they refused to be hospitalized.
BREAKING: Texas police are investigating an active shooter situation at Timberview High School in Arlington, Texas, the school district confirmed to CBS News. The school is on lockdown and the investigation is ongoing. pic.twitter.com/xWqh1nhEzV
"This is not a random act of violence. This is not somebody attacking our schools. This was a student who got into a fight and drew a weapon," Arlington Assistant Police Chief Kevin Kolbye said in a statement.
Simpkins immediately turned himself in after being confronted by officers.