The audio of a 911 call made on the day four University of Idaho students were stabbed to death reveals confusion as the callers realized at least one student was not waking up.

On the frantic 911 call, rapid breathing is heard before one of the callers says, "She's passed out -- what's wrong?"

A 911 call has been released from the day four University of Idaho students were found dead in their Moscow home. The call begins with a crying woman frantically saying to the dispatcher, “Something is