Ruling rejects lawsuit from murder-suicide of students

Murder of a 16-year-old girl leads to rejected lawsuit

PHOENIX, Ariz. (AP, KYMA/KECY) — The Arizona Supreme Court has rejected a mother's lawsuit against a school district for the 2014 killing of her 16-year-old daughter by a 15-year-old boy, who then committed suicide outside a Phoenix home after school.

The decision Friday said Deer Valley Unified School District officials acted to protect another female student after the boy made threatening comments toward her, but not toward the girl who was killed. The mother claimed that officials nevertheless failed to protect her daughter.

But the court said there was no “”known and tangible risk”″ to the daughter, and that the duty to protect students generally applies only when they're under school supervision and control.