Sophomore Dead After Self-Inflicted Gunshot Wound at Houston High School

A 16-year-old shot and killed himself at a suburban high school Tuesday, prompting a temporary lockdown at the school.

The sophomore went to a secluded area next to the Seven Lakes High School's cafeteria courtyard around noon and shot himself, said Steve Stanford, a Katy Independent School District spokesman.

The boy left a note, Stanford said. Officials would not release its contents.

A student who witnessed the shooting ran to a school nurse for help, and the nurse and an assistant principal called 911. A helicopter transported the boy to Memorial Hermann Hospital, where he later died.

No other students were harmed or threatened before the shooting, Stanford said.

The high school was placed on lockdown status with all doors secured immediately after the shooting, Stanford said. Students remained on lockdown until 1:30 p.m. and were released as usual at 2:30 p.m.