The Killer Within

Det. Sgt. J. J. "Cowboy" Manford is tasked with his second serial murder case in less than a year. Three women are killed via strangulation. The only evidence is semen, which is from the same perpetrator. However, the DNA from it is not found in any database. The only other connection is that a well-known and well-liked local psychiatrist/psychologist knew all three women. Unfortunately, at the time all three women are killed, he cannot account for his time, claiming to have no memory of any encounter with these women outside of their initial meeting. A psychological alibi or a brilliant liar?