A student who was armed with a handgun shot and killed a teacher and wounded two of classmates before turning the gun on himself. The student used a semi-automatic to kill the teacher and critically wound the two students.
The shooting took place in a middle school in Nevada on Monday, said law enforcement and school officials.
Witnesses said the scene was chaotic at the middle school in Sparks, a town located in northwest Nevada near Reno and the border of California.
When the gunfire started outside the school classrooms, the students were arriving for the day.
One student said another student became mad and pulled the gun out and shot one student and possibly another and then calmly walked over to a teacher and told him to back up. The teacher obliged and the student just fired.
This incident is just the latest in a series of shootings across the U.S. in recent years. Last December 26 people including 20 students were killed by a sole gunman who then killed himself. This incident, as did the others, will certainly spark the gun control debate all over again.
The teacher killed at the Middle School was Michael Landsberry a math teacher who was 45 years of age.
Authorities have not released the identity of the shooter, but said he was a student at the school who was 12 years old.
Authorities would not identify the two students who were critically wounded, but both are 12.
One boy sustained a gunshot to the shoulder, while the other took a bullet to the abdomen.
Landsberry was a former Marine and Nevada Air National Guard member. He was described as a hero since he attempted to persuade the boy to drop the gun.
Officials said the young gunman started firing the semi-automatic at just after 7:15 am just 15 minutes prior to the start of classes.