The mother of the suspected gunman in last week’s shooting at Apalachee High School in Georgia says she alerted the school the morning of the attack, and that teachers had already noticed the warning signs.

In an interview with ABC News published Tuesday, Marcee Gray said she called the school counselor on the morning of Sept. 4, 2024, the day of the shooting, to alert authorities to a disturbing message she had received from her son, Colt Gray.

“The counselor said, ‘Well, I wanted to let you know that one of Colt’s teachers sent me an email earlier this morning saying that Colt had made references to school shootings,'” Gray told the outlet. “Between my gut feelings, the text messages, and now this email, I need you all to run to the classroom.”

Gray said the last message she received from her son was, “I’m sorry, Mom.” She said his father received similar messages, with one saying, “I’m sorry” and “You’re not to blame for this.”

A woman, believed to be Marcee Gray, sits in a car outside the home of suspected Apalachee school shooter Colt Gray and his father, Colin Gray, in Winder, Georgia, Sept. 6, 2024. (Ben Hendren for Fox News Digital)

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She also said she called Apalachee almost a week earlier because “I wanted Colt to be admitted for inpatient treatment. Colt was all for it.”

When she heard about the shooting, Gray said, “she fell to the ground and started screaming.”

“I knew what had happened. I just knew in my gut,” she said, calling it “incomprehensible” what had happened to the victims.”

“If I could take their place, I would,” Gray told ABC News. “I would do it in a heartbeat.”

Fox News Digital has reached out to Gray and the district for additional comment.

Suspected shooter Colt Gray, 14 (Barrow County Sheriff’s Office)

Officials say Colt Gray, 14, shot and killed students Christian Angulo and Mason Schermerhorn, both 14, and teachers Richard Aspinwall, 39, and Cristina Irimie, 53. Eight other students and a teacher were injured — seven of them by shooting — and are expected to recover.

Marcee Gray’s sister, Annie Brown, told The Washington Post that her sister had texted her saying she had spoken to a school counselor and warned staff of an “extreme emergency” before the killings. Brown said Marcee Gray had urged them to find her son “immediately” to check on him.

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Brown provided screenshots of the text exchange to the newspaper, which also reported that a call log from the family’s shared phone plan showed a call to the school at 9:50 a.m. The shooting began at 10:20 a.m., according to warrants for Gray’s arrest.

In this image from a video monitor, suspected gunman Colt Gray (left) sits in the Barrow County Courthouse during his initial appearance for the Apalachee High School shooting on Sept. 6, 2024, in Winder, Georgia. (Brynn Anderson-Pool/Getty Images)

The boy’s grandfather, Charles Polhamus, told multiple news outlets that Marcee Gray received a text message from her son on Wednesday saying he was sorry. Polhamus told CNN that Marcee Gray drove to Winder, more than 200 miles from Fitzgerald, immediately after the shooting.

Authorities say Gray’s father, Colin Gray, gave Colt access to the semi-automatic AR-15-style rifle used in the shooting. It’s unclear how Gray got the rifle onto campus or what he did with it in the two hours between the start of school at 8:15 a.m. and the time the first shots rang out.

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Colt Gray was charged as an adult last week with four counts of murder in connection with the shooting. He faces a maximum sentence of life in prison without the possibility of parole or life in prison with the possibility of parole if convicted.

Colin Gray is the first parent of a school shooting suspect to be charged in Georgia, District Attorney Brad Smith said Friday. Colin Gray has been charged with second-degree murder, involuntary manslaughter and cruelty to children for giving his son the gun.

Colin Gray was jailed in Barrow County after refusing to post bail in a brief court appearance Friday in Winder. Colt Gray is being held in a juvenile detention center after refusing to post bail. Neither has been charged or entered a plea.

Alleged school shooting in Apalachee Colt Gray and his father Colin Gray’s former neighborhood in Jefferson, September 6, 2024. Both lived in the home until they were evicted in May 2022. (Ben Hendren for Fox News Digital)

It is unclear whether Barrow County School District authorities knew before the shooting that Colt and Colin Gray had previously been questioned in May 2023 by a sheriff’s deputy in neighboring Jackson County after a report was made of an online threat to shoot up a high school where Colt Gray, then 13, attended.

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Colin Gray told the detective at the time that Colt had access to unloaded guns in the home, but that he knew “how to use them and how not to use them.” He also said that his son had been struggling since he and his wife split and that Colt had been bullied at school.

Timothy H.J. Nerozzi and Greg Norman of Fox News Digital and The Associated Press contributed to this report.