Authorities investigating the Monday shooting at a Nevada middle school say they have not ruled out the possibility of filing charges against the parents of the shooter. Police say that the boy was likely to have obtained the handgun used in the assault from his home.

Officials in Sparks, Nevada have refused to name the boy who shot and killed a teacher and wounded two classmates before taking his own life.

A classmate told CNN that she believes the gunman was responding to repeated bullying.

Amaya Newton said that the shooter was a “nice kid” who liked to help cheer up people having a bad day but was repeatedly bullied. She said that she believes he brought the gun as a way to protect himself from the bullying happening on the playground and in school.

Police praised slain teacher Michael Landsberry on Tuesday saying that his actions likely saved the lives of many students. The Marine veteran, who served two tours in Afghanistan with the Nevada Air National Guard, approached the gunman with hands up in an attempt to get him to lay down the weapon. He was backing away from the student as ordered when the gunman shot Landsberry in the chest.

Landsberry leaves behind a wife and two daughters.

A student opened fire at a middle school in Nevada killing a teacher and wounding two other students.

The student shooter also died.

“As you can imagine, the best description is chaos,” Tom Robinson, deputy chief of the Reno Police Department, told CNN. “It’s too early to say whether he was targeting specific people or just going on an indiscriminate shooting spree.”

A 13-year-old student told the Reno Gazette-Journal that the shooter pointed a gun at a teacher who told him to drop the weapon. The student then shot the teacher causing students to panic.

Law enforcement says they cannot tell if the shooter killed himself or if he was killed by officers.