The Brief Jonathon Porter, who was convicted of the 2023 Lamar High School shooting that killed a 15-year-old student, has turned 19 and is legally an adult. A judge decided to transfer Porter from juvenile custody to the adult prison system to continue serving his 40-year sentence after hearing reports of continued violent behavior and an escape attempt. Defense attorneys unsuccessfully argued for Porter to be released on supervised parole, while prosecutors and the victim's family advocated for the adult prison transfer.



A teenager convicted in the deadly 2023 shooting at Lamar High School will spend the remainder of his 40-year prison sentence in the adult correctional system.

Arlington school shooter sent to prison

The backstory:

The shooting occurred on March 20, 2023, just before school started for the day at Lamar High School in Arlington. Jonathan Porter opened fire, killing 15-year-old Jayshawne Poirier and injuring another student. Porter was later sentenced to 40 years in prison.

He's now 19 and legally an adult. That's why FOX 4 is now identifying him and showing his face.

Jonathan Porter

What's new:

On Wednesday, a judge had to decide whether Porter should be paroled or move to the Texas Department of Corrections to continue serving his prison sentence.

Prosecutors argued that Porter has continued to show violent behavior while in juvenile detention and has been noncompliant with treatment programs.

 Six months before this hearing, he's involved in two fights - one just last month. Nothing has changed,  said Prosecutor Lloyd Whelchel.  He took this woman's son for no reason. Shot this woman, this young lady, in the face. He didn't even see her or know her. And he endangered approximately 20 other kids who were out there that day for no reason. He lied to law enforcement about why he committed this crime. He falsely accused two young men of sexual assault. Nothing has changed. 

The other side:

Porter's defense attorney argued unsuccessfully for the option to release him on parole with supervision.

 He will be on parole. It's not as if this court is releasing him

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