And three weeks later, an anonymous caller reported the family to the child abuse line yet again.

Instead, they said, an anonymous caller to the police implicated him.

The police were led to the apartment, 6A, by an anonymous caller.

The anonymous caller said he had heard about the threat while monitoring air traffic.

An anonymous caller suggest the students have support from the leader of China's trade unions.

There was a click, and the anonymous caller hung up.

What would he think if she shared her anonymous caller's message?

Suddenly, he thought of the anonymous caller who had been bothering her.

But Nancy didn't know how she would ever recognize the anonymous caller.

He could call and report it, of course, but his superiors might well have already heard from an anonymous caller.