WBRZ - Baton Rouge

ST. FRANCISVILLE - Trevor Reese, the teen accused of killing an 8-year-old boy almost three years ago, pleaded guilty to second-degree murder charges today after he dropped his insanity defense.

Reese was scheduled to go to trial Monday on first-degree murder charges. A date for a sentencing hearing has not been set yet.

Authorities accused Reese of slashing Jackson Attuso's throat while the boy and his family were out riding bicycles in a park. Investigators said Reese approached construction workers and told them to call 911 because he'd just stabbed someone. When they asked Reese why, he said, "Because he was the first one there."

News 2 will have more on this story as it develops.