Dick Tracy's quick thinking in giving Doris Corres an injection of anti black widow spider serum undoubtedly saved her life, but unfortunately at the moment she is too sick to be questioned as to the identity of the person who blew the poison dart into her neck. However, yesterday Tracy found out that the murderer must have shot two of his victims from the iron catwalk that connected with the fly loft above the stage. They also discovered that the fly loft had a fire door at one end which led into the front part of the theater, and this was how the killer must have escaped...