Alva Review-Courier -

PHOENIX (AP) — An Arizona middle school principal who failed to alert police of an attack planned by four students on her school told them she was going to contact authorities after she finished investigating the threat, police said Wednesday.

The plot involving High Desert Middle School in Globe was foiled several days before it was to be carried out when the mother of another student called police after learning about the threat.

Principal Lori Rodriguez heard of the plot on March 28 and was conducting an internal investigation to determine if it was credible, said Robert Folker, interi...