The Coroner, Dr. Lalli (whose evidence with regards to his observations and calculations regarding time of death are on Pages 113 to 116 of the Massei Report);
Consultant appointed by the Public Ministers (prosecution), namely Professor Mauro Bacci;
Consultants appointed by the court (the GIP - judge at a previous hearing), namely Professor Giancarlo Umani Ronchi and Professor Mario Cingolani;
Consultant for the civil party, namely Professor Gianaristide Norelli;
Consultant for the defence of Amanda Knox, namely Professor Carlo Torre; and,
Consultants for the defence of Raffaele Sollecito, namely Professor Francesco Introna and Professor Vinci.
Evidence such as the time of Meredith’s last meal (approximately 18.30 hrs) and when she was last seen by her friends (a few minutes before 21.00 hrs) was used by the court to ascertain the earliest possible time of death, i.e. 21.00 hrs was the last time Meredith was seen alive and the “time window” calculated with reference to forensic medical evidence could not start earlier than that [Page 131].
Arguments were heard with regards to how various factors would have affected calculation of time of death, these are all detailed in the Massei Report as are the different views and opinions of the various consultants noted above. The main points of contention were the effect the covering of the body had and the timing of the emptying of the stomach.
Details from the report
Dr. Lalli saw the body at around 14.40 to 15.00 hrs on 2nd November and noted that there was “cadaveric rigidity… of the ankle and toes” [Page 110]. He did not examine the body fully at that time as the scientific police were conducting their investigation and it was important to preserve the crime scene so they could do their job. He first examined the body at 00.50hrs on 3rd November 2007 - it was subject to rigor mortis. Rigor was still established at 12.00 hrs on 3rd November and was resolved by 10.00 hrs on 4th November - and thus he considered that the stages of rigor supported the time window established by the temperature of the body.
Dr. Lalli used both his experience of various factors which affect the rate of loss of heat energy from the body and also mathematical methods - namely the application of the Henssge nomogram - to establish a time window by considering the body temperature.
His calculations led to him reporting a window of between 21 and a half hours and 30 and a half hours prior to his first examination of the body (00.50 hrs 3rd November). He noted that the intermediate point of this window was 23.00 hrs on 1st November [Page 173]. Discussions centred on the weight of the body and also the effect of the cover placed over the body specifically how these would effect the application of the Henssge nomogram.
Looking at the hypostatic staining in this case did not help to narrow the time window [Page 114]. During his first examination of the body at 00.50 hrs on 3rd November Dr. Lalli noted that the stains were not fully fixed - digital pressure caused the stain to fade but not to disappear. In the following examination at 12.00 hrs on 3rd November the hypostasis was “fixed to finger pressure”.
This indicated that death occurred 24 to 36 hours earlier - however it is not known at what precise point in time between the first and second examination of the body that fixation occurred - therefore the court considered that the time of 12.00 hrs on 3rd of November was the latest possible time to count back the 24 to 36 hours.
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