Here are the most significant observations made by coroner Kent Hart:
- All the victims had both anterior lividity (on face and chest) and posterior lividity (on buttocks and back)
- The lividity hadnt fixed yet
- MM and CB had fly larvae in eyes and nostrils, while SB only had fly larvae in the eyes
The fly larvae were never collected and never identified. According to professor of entomology Lee Goff, Scarcophagidae (also known as flesh flies) dont lay eggs, but deposit larvae straight away. Also, flies have a tendency to start with the head of a human cadaver, followed by other regions. And flies will prefer antemortem and perimortem wounds over postmortem wounds. Since CB had no larvae in his groin area, this might be an indication that that injury was caused postmortem. Sorry if this is graphic, but I think its important to take this into account. Anyways, the WMPD should NEVER have taken the bodies from the water BEFORE the coroner arrived. I have no idea what they were thinking there. IMO, the larvae were indeed flesh flies and were deposited in the time that the bodies were lying on the ditch bank (which was roughly an hour).
The lividity points to the moving of bodies. Since the lividity hadnt become fixed by the time the coroner came (16:00 PM), I guess its possible (but very unlikely) that the posterior lividity was caused by the way the bodies were placed on the ditch bank by WMPD. The crime scene footage shows that the bodies were placed on the sides (MM and SB on right side, CB on left side). Does anyone know if the bodies were in that position the entire time? Or were the bodies moved multiple times? Since the bodies were found face down (according to Ridges court testimony. He says that MM was found lying on his left side facing Memphis, but this was after the body had become dislodged from the bottom of the ditch) the anterior lividity was caused by the way the bodies were placed in the ditch. IMO, the bodies were lying on their backs for a couple of hours, before the bodies were dumped in the ditch by the perp.
The fact that the lividity hadnt become fixed yet doesnt mean much. Yes, lividity often fixes after 8-12 hours, but there is a great variety in the rate of lividity from person to person, as this study shows:
http://www.indmedica.com/journals.php?journalid=9&issueid=70&articleid=887&action=article
Some of the bodies had fixed lividity after a couple of hours in the cold chamber, while other werent fixed after almost 24 hours. IMO, the fact that the lividity hadnt become fixed yet, doesnt necessarily mean that TOD was after 1 AM.