The teenager who opened fire at his Georgia high school in September 2024, killing two students and two teachers, will appear in court later this month for a “non-negotiated plea and sentencing hearing,” according to court documents, indicating that he intends to change his plea to guilty.

Colt Gray previously pleaded not guilty and is expected to appear in court for a change-of-plea hearing on July 24. His trial had been tentatively set for October.

Now 16, Colt faces 55 counts, including charges of felony murder, malice murder and aggravated assault for each of the four victims.

CNN has reached out to Gray’s attorney for comment.

The charges stem from the mass shooting at Apalachee High School in Winder, Georgia, on the morning of September 4, 2024.