Board Thread:Writer's Workshop/@comment-24059312-20140516023504/@comment-24821182-20140519160158

Well, he's not just giving a confession. He's already told her that he's in grave danger. I can imagine the operator would want him to remain calm, keep him on the line until the police arrives, and the best way to do that would be to listen to his story. She probably shouldn't respond to his story by getting personal, but it's all right to have her shout "MIKE!" and the like when the kid suddenly meets his end.

You could have her show a willingness to keep Mike from hanging up. Maybe she could ask him to elaborate on some minor details of his story (though not anything related to the murder of Sammie, obviously).