A timeline of the Apalachee High School shooting

On the morning of September 4, a student rode the bus to his school in Georgia with a gun and a knife concealed in his backpack, investigators said.

Within two hours of his arrival at Apalachee High School in Winder, prosecutors said he committed the deadliest U.S. school shooting since the March 2023 shooting at Covenant School in Nashville, and the 45th this year.

Two teachers and two students were killed and nine others, including one teacher and eight students, were injured.

Newly obtained emergency video and dispatch data from the Barrow County Sheriff’s Office documented the chaos and panic that ensued inside the school when reports of an active shooter were reported, and outside the school as concerned parents received panicked text messages from their teenagers.

Colt Gray, 14, who enrolled in school on Aug. 14 and had missed nine days of classes before the shooting, is charged with four counts of murder and will face additional charges, the Barrow County district attorney’s office said. He will be tried as an adult and, if convicted, could face life in prison.

His father, Colin Gray, 54, is charged with two counts of second-degree murder, four counts of involuntary manslaughter and eight counts of cruelty to children. He bought the gun allegedly used in the shooting in December 2023 as a holiday gift for his son, according to two law enforcement sources with direct knowledge of the investigation.

The shooter and his father have not entered pleas. An attorney for Colt Gray declined to comment to CNN, and an attorney for Colin Gray did not respond to a request for comment.

Sept. 4 at Apalachee High School

According to the Georgia Bureau of Investigation, Colt Gray rides the bus to school. He has an assault rifle in his backpack, along with a knife. The school does not have metal detectors.

During his Algebra 1 class, Gray asked the teacher if he could go to the front desk to talk to someone, the station said. The teacher made him leave the classroom and take his belongings around 9:45 a.m., student Lyela Sayarath, who sat next to him in the class, previously told CNN.

Gray sent an alarming, cryptic text to his mother, Marcee Gray, urging her to warn the school that something might be wrong. “I’m sorry, Mom,” the text read. An unknown person also called the school that morning, warning of shootings at five schools, with Apalachee believed to be the first, authorities said.

Gray’s mother placed a 10-minute phone call to the school around 9:50 a.m., the Washington Post reported. She asked administrators to keep an eye on her son and authorities began searching for him, Barrow County Sheriff Jud Smith told CNN affiliate WXIA.

An officer went to look for the boy, but there was another student in the same class with “nearly the same name” and neither he nor Colt Gray were in the classroom at the time, the sheriff said.

“He went to the bathroom with a female student who has a similar name. That’s who they think we’re looking for,” Smith said.

Officers believe they caught up to Colt Gray in time, but they spoke to the other student. “As we’re trying to figure out what’s going on, the shooting starts,” Smith told WXIA.

Shortly after Gray leaves the bathroom and hides from the teachers, he comes out with the gun and begins searching for “soft targets,” Smith told WXIA.

Authorities first received reports of an active shooter on campus at 10:20 a.m. after someone pressed a portable panic button that had been provided to teachers a week earlier, the sheriff’s office said.

The first report of the shooting came in via a “RapidSOS” device at 10:22 a.m. ET, according to computer-aided dispatch reports released Friday by Barrow County. The Barrow County Sheriff’s Office arrived at the school a short time later with two school resource officers.

“Active shooter!” an officer can be heard shouting in an audio clip as he speaks to a dispatcher, who repeats the phrase back to him. Another officer can be heard calmly responding, “Correct. We have an active shooter at Apalachee High School.”

Two minutes later, authorities have identified the suspect as “Colt,” and one student is already dead, the reports said.

The suspect surrenders after a resource officer confronts him and he is arrested, Smith said. As of 10:30 a.m., Gray is “in custody, not injured,” the reports state.

Fifteen minutes later, the reports show one person dead in one hallway and three dead in another hallway.

A female officer, sounding slightly out of breath, asks the dispatcher to call an ambulance. She confirms that emergency medical services are on their way to the high school.

At 11:38 a.m., the school sent an urgent message to parents: “Haymon-Morris Midd: ​​Parents and guardians, HMMS remains in strict lockdown. HMMS students are safe and secure. Please be patient.”

Just after 11:45 a.m., a woman identifying herself as Colt’s aunt discovered he had sent a text message. She called a Barrow County 911 operator, crying, saying she feared her nephew was involved in the Apalachee High School shooting, according to a recording released Friday.

“My mom just called me and said that Colt texted his mom, my sister, and his dad saying he was sorry, and that they called the school and told the counselor to come get him right away,” the woman told the dispatcher. “And then she said she saw the shooting, and I’m just scared it was him.”

Meanwhile, a school counselor informs Marcee Gray that her son has been referring to school shootings, she told ABC News, prompting her and the teen’s grandfather to travel 200 miles from Fitzgerald to Winder, Georgia.

When asked why responding police did not shoot the suspect, the sheriff told WXIA that Gray “committed to putting the weapon down and getting into the prone position as he was instructed.”

“We have him handcuffed and at that point the threat is over,” Smith added.

After the suspect is apprehended, officers flood into Apalachee High, evacuating students from classrooms as emergency responders tend to the wounded.

Mid-afternoon, the school sends another text message: “Haymon-Morris Midd: ​​Law enforcement has now given permission to lift the lockdown… Thank you.”

As families rush outside the school to reunite, Lyela Sayarath recounts the shooting to a CNN reporter, describing the moment she saw a friend who had been in a classroom where shots had been fired.

“He saw it. He saw someone get shot. He had blood on him. He was limping a little bit,” Lyela said. “He looked shocked.”

CNN’s Dalia Faheid, Ashley R. Williams, Alisha Ebrahimji, Nouran Salahieh, Michelle Krupa, Nicole Chavez and Jamiel Lynch contributed to this report.

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