Winder, Georgia — 

The 14-year-old suspect in a shooting that killed four people at a Georgia high school and his father, who was arrested for allowing his son to have a weapon, will stay in custody after their lawyers decided not to seek bail Friday.

Colt Gray, who has been charged with four counts of murder, is accused of using a semiautomatic assault-style rifle to kill two fellow students and two teachers Wednesday at Apalachee High School in Winder, outside Atlanta. His father, Colin Gray, faces related charges in the latest attempt by prosecutors to hold parents responsible for their children’s actions in school shootings.

The two appeared in back-to-back hearings Friday morning with about 50 onlookers in the courtroom, where workers had set out boxes of tissue along the benches, in addition to members of the media and sheriff’s deputies. Some victims' family members in the front row hugged each other and one woman clutched a stuffed animal.

During his hearing, Colt Gray, wearing khaki pants and a green shirt, was advised of his rights as well as the charges and penalties he faced for the shooting at the school where he was a student.

After the hearing, he was escorted out in shackles at the wrists and ankles. The judge then called the teen back to the courtroom to correct an earlier misstatement that his crimes could be punishable by death. Because he’s a juvenile, the maximum penalty he would face is life without parole. The judge also set another hearing for December 4.

Shortly afterward, Colin Gray was brought into court dressed in a gray-striped jail uniform. Colin Gray, 54, was charged Thursday in connection with the shooting and answered questions in a barely audible croak, giving his age and saying he finished 11th grade, earning a high school equivalency diploma.

Colin Gray has been charged with involuntary manslaughter and second-degree murder related to the shooting, Georgia Bureau of Investigation Director Chris Hosey said.

“His charges are directly connected with the actions of his son and allowing him to possess a weapon,” Hosey said.

The charges come five months after Michigan parents Jennifer and James Crumbley were the first convicted in a U.S. mass school shooting. They were sentenced to at least 10 years in prison for not securing a firearm at home and acting indifferently to signs of their son’s deteriorating mental health before he killed four students in 2021.

The Georgia shootings have also renewed debate about safe storage laws for guns and have parents wondering how to talk to their children about school shootings and trauma.

The Barrow County hearings for the father and son came as police in the Atlanta suburb of Dunwoody said schools there and nationwide have received threats of violence since the Apalachee High School shooting, police said in a statement. The Georgia Bureau of Investigation also noted that numerous threats have been made to schools across the state this week.

Before Colin Gray’s arrest was reported, the AP knocked on the door of a home listed as his address seeking comment about his son’s arrest.

According to arrest warrants obtained by The Associated Press, Colt Gray is accused of using a “black semi-automatic AR-15 style rifle” to kill the two students and two teachers. Authorities have not offered any motive or explained how he obtained the gun or got it into the school.

He was charged as an adult in the deaths of Mason Schermerhorn and Christian Angulo, both 14, Richard Aspinwall, 39, and Cristina Irimie, 53. Nine people were also hurt in Wednesday’s attack.

A neighbor remembered Schermerhorn as inquisitive when he was a little boy. Aspinwall and Irimie were both math teachers, and Aspinwall also helped coach the school's football team. Irimie, who immigrated from Romania, volunteered at a local church, where she taught dance.

Colt Gray denied threatening to carry out a school shooting when authorities interviewed him last year about a menacing post on social media, according to a sheriff’s report obtained Thursday. Conflicting evidence on the post’s origin left investigators unable to arrest anyone, the report said. Jackson County Sheriff Janis Mangum said she reviewed the report from May 2023 and found nothing that would have justified bringing charges at the time.

The attack was the latest among dozens of school shootings across the U.S. in recent years, including especially deadly ones in Newtown, Connecticut; Parkland, Florida; and Uvalde, Texas. The classroom killings have set off fervent debates about gun control but there has been little change to national gun laws.

It was the 30th mass killing in the U.S. this year, according to a database maintained by The Associated Press and USA Today in partnership with Northeastern University. At least 127 people have died in those killings, which are defined as events in which four or more people die within a 24-hour period, not including the killer — the same definition used by the FBI.