A teenager from Arlington, Texas, charged in a deadly high school shooting, was arrested again after a prohibited substance was found in his system, violating the terms of his release, police said.

Timothy Simpkins, 18, who is accused of opening fire in class during a fight, was released on a $75,000 bond, with the stipulation that he would not use alcohol or drugs.

Additionally, Simpkins was placed on house arrest with an ankle monitor and was not allowed to contact anyone involved in the shooting. He was also prohibited from possessing any firearms.

A urine analysis test indicated Simpkins had a substance that violated the terms of his bond, and he was booked into jail late Thursday, records show.

SUSPECTED SCHOOL SHOOTER BULLIED FOR BEING WEALTHY, FAMILY SAYS

Simpkins is accused of opening fire at Timberview High School in October, injuring four people, including two teachers. He is charged with three counts of aggravated assault with a deadly weapon. If convicted, Simpkins could face up to 20 years in prison.

Footage of the incident shows a fight in which Simpkins was punched by another student in the stomach. When teachers noticed the fight, they attempted to break it up, according to an arrest warrant affidavit.

The other student, 15-year-old Zacchaeus Selby, stopped fighting when teachers got involved. Simpkins retrieved a gun from his backpack and shot Selby, the affidavit said. Two teachers and another student were also hit. However, the bullet only grazed one of them. Simpkins fled the scene but turned himself in later that day.

Police said Simpkins was involved in "high-risk activity," while the family of Simpkins has claimed he was bullied for being wealthy.

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The new arrest occurred 10 days after Simpkins petitioned the court to allow him to attend church on Sundays, according to the Fort Worth Star-Telegram. A judge had yet to issue a ruling on that request.