Georgia high school shooting suspect Colt Gray has pleaded not guilty and is demanding a jury trial in the wake of the attack at Apalachee High School.

A 14-year-old Georgia boy indicted on murder charges in a mass shooting at Apalachee High School pleaded not guilty on Tuesday.Colt Gray's lawyer filed papers entering the plea after Gray was indicted on Thursday.

Colt Gray, 14, pleads not guilty to charges from a high school shooting that killed four. His father, Colin, faces related charges. Colt allegedly showed premeditation, with a detailed plan and disguise for his weapon.

The gunman accused of killing four people inside Apalachee High School last month has waived his arraignment and pleaded not guilty. Colt Gray entered his plea on Tuesday, just days after a grand jury indicted him and his father, Colin Gray.

A Georgia grand jury indicted a father and son on murder and other charges Thursday in the mass shooting at Apalachee High School in Winder, Georgia, last month that left four people dead and another nine injured.

The suspect, who is 14, also waived his right to an arraignment hearing into charges of killing two students and two teachers and wounding others.

Colt Gray has pleaded not guilty to charges related to the fatal mass shooting at Apalachee High School that left four people dead.

Colt Gray, who authorities say admitted to a shooting at his school that left four dead and nine injured, has entered a plea of not guilty, according to court records.

A 14-year-old Georgia boy indicted on murder charges in a mass shooting at Apalachee High School pleaded not guilty on Tuesday.