(AP) -- Police said they have ended their investigation into the circumstances surrounding a deadly schoolyard shooting in Sparks, Nevada where a seventh-grader killed a teacher and wounded two classmates before taking his own life.
Sparks police say they'll release their findings Tuesday at a 1:30 p.m. news conference.
Investigators say 12-year-old Jose Reyes opened fire with a semi-automatic handgun he brought from home just before morning classes at Sparks Middle School Oct. 21.
His parents could be charged if they knowingly made the gun available to him. However, it's not a crime in Nevada if the gun was stored in a place "a reasonable person would have believed to be secure."
His parents say they didn't know Jose knew where they kept it in a kitchen cabinet above the refrigerator.