Local authorities questioned a suspect in the Georgia school shooting in 2023 after receiving an anonymous tip about an alleged threat, according to The Washington Post.

The Jackson County Sheriff's Office interviewed Colt Gray, who was 13 at the time, in May 2023 after the FBI sent it an anonymous tip it received through its National Threat Countermeasures Center, The Post reported. ReportedBut authorities maintained there was no probable cause for the arrest and Gray denied making any threats.

A shooting at Apalachee High School in Winder, Georgia, left four people dead and at least nine others hospitalized on Wednesday. Georgia Bureau of Investigation Director Chris Hosey confirmed that 14-year-old Gray, a student at the school, was arrested after being subdued by officers.

BREAKING NEWS: A shooting has occurred at Apalachee High School in Georgia, northeast of Atlanta, leaving multiple dead and injured. A suspect is in custody, according to the Georgia Bureau of Investigation. Follow us for live updates. https://t.co/dFK7Rs3qVJ

— The Washington Post (@washingtonpost) September 4, 2024

Authorities also interviewed Gray's father in 2023, who admitted that while he owned a hunting rifle, Colt never had access to it unsupervised, The Washington Post reported. The sheriff's office notified local schools at the time to monitor the situation. (Related article: Gunman kills 18, three army officers disciplined for “dereliction of duty”)

“What was meant to be a joyous back-to-school day in Winder, Georgia, turned into a horrifying demonstration of how gun violence continues to tear our communities apart,” President Joe Biden said. said Following the shooting.

Gray will be charged with murder and tried as an adult, Hosey said at a news conference.