Forensic psychologist Louis Schlesinger of John Jay College of Criminal Law spoke to the NY chapter of Mystery Writers of America after dinner last week. Yesterday, I summarized his points about staging a homicide scene and undoing a murder—both aspects of criminality that writers may find useful in their diabolical plotting. Here’s more.
Schlesinger has written about foreign object insertions, a topic he considered not suitable to delve into in a postprandial talk, except to say that about half are not discovered until autopsy and the moths found in the throats of The Silence of the Lambs killer’s victims were not realistic. Why not? I wonder. He’s published an article on this topic, and if you’re super-curious, you can access the full article here.
Serial and Sexual Homicides
Serial and sexual homicides often involve rituals and follow a pattern—a “signature.” The murder alone is not psychologically sufficient to fulfill the killer’s intent. Creating any kind of an elaborate crime scene tableau requires time, which increases the risk of apprehension. Taking this extra risk shows how important that aspect of the crime is to him.
Recall Douglas Preston’s true-crime book, The Monster of Florence, about a series of 16 (at least) murders that took place in north Italy between 1968 and 1985. The killer’s victims often had complicated wounds that would have taken some time to inflict, yet as I recall, the bodies were found in well frequented lovers’ lanes. It was a mystery how he got away with it for so long. (Preston’s book describes the horribly botched investigation masterminded by prosecutor Giuliano Mignini. Over the course of Mignini’s “investigation,” he prosecuted some 20 individuals, all of whom were subsequently acquitted. If his name rings a bell, Mignini was also responsible for the mishandling of the case against Amanda Knox and Raffaele Sollecito.)
But just because a serial killer has a signature, he may vary it occasionally, depending on circumstances. These variations crop up anywhere in the series of killings and can take many forms, making identification of all the victims in a challenge for your fictional investigator.
Psychopathic serial killers are typically of average intelligence, Schlesinger said, with Ted Bundy the exception that proves the rule. What they’re very smart about is masking their pathology. Maybe that’s why a killer’s neighbors and co-workers always say, “He seemed like such a normal average guy!”
Schlesinger pointed to several trends of interest to crime writers. Advances in emergency medicine that have helped save injured military personnel on the battlefield have been imported to our city hospitals. Many people whose injuries would have been fatal a few years ago now can be saved. That’s the good news, partly responsible for holding murder rates down.
The bad news is that, despite more police and better analytic techniques, only about 60 percent of murder cases are cleared by an arrest. It isn’t that the police aren’t doing a good job. Back when most murders occurred between people who knew each other, police investigations had something to go on. Today, the increases in random shootings, drive-by killings, drug killings, and gang warfare mean that, absent a confession, the responsible party is forever a question mark. And, they lack the dramatic possibilities of a 20-year feud between neighbors, a wronged lover, or jealous sibling.