They may also contaminate evidence, or not know what to look for in crime scenes that typically are far more chaotic and confusing, whether inside or outside, than on TV.   Forensic experts will tell you that the most important person entering a scene is the very first responding officer - the chain of evidence starts with this officer and holds or breaks according to what gets stepped on, or over, collected or contaminated, looked past, or looked over, from every person who enters or interprets the scene, all the way through the crime lab and trial.  And forensic experts will tell you the success of a case can depend on any one expert's knowledge of quirky things, such as:"The Rule of the First Victim": (the first victim of a criminal usually lives near the criminal's home) Criminals' snacking habits at the scene"Nature's Evidence Technicians," the birds and rodents that hide bits of bone, jewelry, and fabric in their nestsThe botanical evidence found in criminals' pants cuffs Baseball caps as prime DNA repositoriesThe tales told by the application of physics to falling blood drops.      Forensic experts talk about their expertise and their cases here.  They also talk about themselves, their reactions to the horrors they witness, and their love of the work.  For example, a DNA analyst talks about how she drives her family crazy by buccal-swabbing them all at Thanksgiving dinner.  A latent print examiner talks about how he examines cubes of Jell-O at any buffet he goes to for tell-tale prints.  A crime scene investigator gives his tips on clearing a scene of cops: he slaps "Bio-hazard" and "Cancer Causing Agent" stickers on his equipment.  And an evidence technician talks about how hard it is to go to sleep after processing a scene, re-living what you've just witnessed, your mind going a hundred miles an hour.   This is a world that TV crime shows can't touch.  Here are eighty experts - including beat cops, evidence technicians, detectives, forensic anthropologists, blood spatter experts, DNA analysts, latent print examiners, firearms experts, trace analysts, crime lab directors, and prosecution and defense attorneys - speaking in their own words about what they've seen and what they've learned to journalist Connie Fletcher, who has gotten cops to talk freely in her bestsellers What Cops Know,  Pure Cop, and Breaking and Entering.   Every Contact Leaves A Trace presents the science, the human drama, and even the black comedy of crime scene investigation.   Let the experts take you into their world. This is their book - their words, their knowledge, their stories.  Through it all, one Sherlock Holmesian premise unites what they do and what it does to them: Every contact leaves a trace.

    Louis, in 1986, someone murdered Jude Govreau's 15-year-old daughter and Mari Winzen's 3-year-old son. It would take five years of investigation to bring the killer to trial. This is the story of two determined mothers and a tireless young prosecutor who helped them achieve justice. The killer is now serving a life sentence in prison.

    Months later, another wealthy widow and her prominent son and daughter-in-law were found savagely slain in Winston-Salem, North Carolina. Mystified police first suspected a professional in the bizarre gangland-style killings that shattered the quiet tranquility of two well-to-do southern communities. But soon a suspicion grew that turned their focus to family. The Sharps. The Newsoms. The Lynches. The only link between the three families was a beautiful and aristocratic young mother named Susie Sharp Newsom Lynch. Could this former child "princess" and fraternity sweetheart have committed such barbarous crimes? And what about her gun-loving first cousin and lover, Fritz Klenner, son of a nationally renowned doctor?

     From the files and pen of world renowned true crime writer Alan Hynd (1903 - 1974) comes the final installment of deliciously dark true murder cases of the first half of the 20th Century. These stories, the third of these three short collections, are unified by a single theme: they all involve physicians. And not for the autopsy, but as perpetrators or accused perpetrators. You may never see your family care giver again in the same light. Told in the characteristic wry, anecdotal reportorial style that made Alan Hynd famous in his day (two wartime best sellers in 1943, contributions to The Reader's Digest, Colliers, Coronet, The Saturday Evening Post, True, Liberty, The American Mercury and almost every true detective magazine in print) these tales will have you cringing one minute, laughing the next, and gasping in shock a moment later. Truly, no one could make up classics like these. We meet here the notorious Dr. Cream, a twitchy-eyed psychotic with a yen for prostitutes, a Philadelphia chiropractor whose girlfriend lost her head, and Marcel Petiot, whose patients payed their own way out of this world. Then as a bonus, get to know (from a safe distance) "Lethal Louise," the black widow of California, and Adolf Luetgert of Chicago, whose sausage-making plant was put to extracurricular uses. This is not for the faint of heart. True crime is always farther out there than fiction.

    Now updated with new material that brings the killer's picture into clearer focus.In the fall of 1888, all of London was held in the grip of unspeakable terror.  An elusive madman calling himself Jack the Ripper was brutally butchering women in the slums of London’s East End.  Police seemed powerless to stop the killer, who delighted in taunting them and whose crimes were clearly escalating in violence from victim to victim.  And then the Ripper’s violent spree seemingly ended as abruptly as it had begun.  He had struck out of nowhere and then vanished from the scene.  Decades passed, then fifty years, then a hundred, and the Ripper’s bloody sexual crimes became anemic and impotent fodder for puzzles, mystery weekends, crime conventions, and so-called “Ripper Walks” that end with pints of ale in the pubs of Whitechapel.  But to number-one New York Times bestselling novelist Patricia Cornwell, the Ripper murders are not cute little mysteries to be transformed into parlor games or movies but rather a series of terrible crimes that no one should get away with, even after death.  Now Cornwell applies her trademark skills for meticulous research and scientific expertise to dig deeper into the Ripper case than any detective before her—and reveal the true identity of this fabled Victorian killer.In Portrait of a Killer: Jack the Ripper, Case Closed, Cornwell combines the rigorous discipline of twenty-first century police investigation with forensic techniques undreamed of during the late Victorian era to solve one of the most infamous and difficult serial murder cases in history.  Drawing on unparalleled access to original Ripper evidence, documents, and records, as well as archival, academic, and law-enforcement resources, FBI profilers, and top forensic scientists, Cornwell reveals that Jack the Ripper was none other than a respected painter of his day, an artist now collected by some of the world’s finest museums: Walter Richard Sickert.It has been said of Cornwell that no one depicts the human capability for evil better than she.   Adding layer after layer of circumstantial evidence to the physical evidence discovered by modern forensic science and expert minds, Cornwell shows that Sickert, who died peacefully in his bed in 1942, at the age of 81, was not only one of Great Britain’s greatest painters but also a serial killer, a damaged diabolical man driven by megalomania and hate.  She exposes Sickert as the author of the infamous Ripper letters that were written to the Metropolitan Police and the press.  Her detailed analysis of his paintings shows that his art continually depicted his horrific mutilation of his victims, and her examination of this man’s birth defects, the consequent genital surgical interventions, and their effects on his upbringing present a casebook example of how a psychopathic killer is created.New information and startling revelations detailed in Portrait of a Killer include:- How a year-long battery of more than 100 DNA tests—on samples drawn by Cornwell’s forensics team in September 2001 from original Ripper letters and Sickert documents—yielded the first shadows of the 75- to 114 year-old genetic evid...

    Though a massive 150-man dragnet is launched, the case remains unsolved. Three years later the killer strikes again, raping and strangling teenager Dawn Ashforth only a stone's throw from where Lynda was so brutally murdered. But it will take four years, a scientific breakthrough, the largest manhunt in British crime annals, and the blooding of more than four thousand men before the real killer is found.

    Starting at the age of five, he recalls being sexually curious and began placing items in his anus at the age of eight. He'd sexually assault hundreds of little girls before committing his first murder. Sadly, as law enforcement stumbled along with no leads or evidence, Robert Black would strike repeatedly destroying families and preying on innocent little girls in the United Kingdom.