One aspect of this show I found unbelievable was the change in Harry's mind from George Mason was the killer to he wasn't and they should be looking for a woman.

Remember George's mother was convinced that her son did not commit the murder because her son told her he did not do it. Then Harry went back a second time to talk with George. George was being a smart-aleck but said he heard 'light footsteps, like a dame with heels'. Once Harry heard that, he was convinced George was not the killer and the show progressed along those lines.

My thoughts are if you have a punk in custody for killing a police officer, he will say just about anything to save his neck. 