Teen pleads guilty to murder in a 2024 shooting that left 4 dead at Georgia's Apalachee High School

Colt Gray, 16, pleaded guilty to all 55 counts, including murder, in the 2024 shooting at Apalachee High School in Winder, Georgia.

The shooting on Sept. 4, 2024, killed two teachers Richard "Ricky" Aspinwall and Cristina Irimie, and two students Mason Schermerhorn and Christian Angulo, both 14.

Gray was 14 at the time and charged as an adult; he entered the plea without a deal with prosecutors.

His father Colin Gray was convicted of second-degree murder and involuntary manslaughter for giving his son the assault-style rifle used in the shooting.

The judge will decide whether Gray is eligible for parole after hearing victim statements; murder carries a minimum sentence of life in prison.