Standard chemical screening was performed on all evidence. With the possibility
of coumadin as contributing factor in the cause of death, more extensive tests were performed.
Detection and quantitation was carried out using high performance
liquid chromatography mass spectrometry with a diode array detector (HPLC-MS/DAD)
in addition to infrared spectrometry (IR). Suspect samples were washed
or macerated with methanol and the resulting extract allowed to dry.
The residue was re-dissolved in 10% aqueous methanol and injected onto the
HPLC. Liquid samples were subjected to organic and solid phase (C18) extraction
and the resulting evaporated residue re-dissolved in 10% aq. MeOH prior to HPLC analysis.
Pharmaceutical grade coumadin was obtained as a reference standard.
| Evidence Item |
General Chemical Screening |
Coumadin Analysis |
| Collected at Autopsy |
| stomach contents - 6cc
red liquid[1] |
Negative |
Positive (16ug/mg) |
| [1] Preliminary analysis of stomach contents found the presence of ethyl alcohol in the red liquid. Further analysis to identify the red liquid and/or its components is pending. |
| Collected from the Landon Talley Residence |
| 003572-11: One (1) Walgreens® aspirin, 50 count, unopened |
Negative |
Negative |
| 003572-12: One (1) Walgreens® aspirin, 50 count, 36 remaining |
Negative |
Negative |
| 003572-13: One (1) prescription medication bottle, 4 tablets remaining |
Negative |
Negative |
| 003572-15: One (1)
prescription medication bottle, containing 2 white tablets[2] |
Negative |
Negative |
| [2] Preliminary analysis of tablets indicate they are consistent with aspirin. |
| 003572-16: One (1) 750 ml Roses® grenadine, ~3/4 remaining |
Negative |
Negative |
| 003572-17: One (1) 750 ml bottle Grey Goose® vodka, ~1/3 remaining |
Negative |
Negative |
| 003572-18: One (1) 750 ml bottle Tanqueray No. 10® gin, ~1/2 remaining |
Negative |
Negative |
| 003572-19: One (1) 750 ml Jacques Prieur Clos de Vougeot® merlot, ~1/2 remaining |
Negative |
Negative |
| 003572-20: One (1) 64 oz bottle Northland® cranberry juice, ~1/4 remaining |
Negative |
Negative |
| 003572-21: One (1) box cutter razor |
Negative |
Positive (132ug) |
| 003572-22: One (1) Goody's® headache powder packet, empty |
Negative |
Negative |
| Collected from the Rupert Coates Residence |
| 003572-23: One (1) Walgreens® aspirin, 50 count, 42 remaining |
Negative |
Negative |
| 003572-24: One (1) Goody's® headache powder packet, unopened |
Negative |
Negative |
| 003572-25: One (1) prescription medication bottle, empty |
Negative |
Trace (8.3ng) |
| 003572-26: One (1) stone mortar |
Negative |
Positive (33ug) |
| 003572-27: One (1) stone pestle |
Negative |
Positive (81ug) |
| 003572-28: One (1) 750 ml bottle Gruppo® Campari, opened, ~1/4 remaining |
Negative |
Positive (133ug/ml) |
| 003572-29: One (1) 750 ml bottle Absolut® Vodka, opened, ~1/2 remaining |
Negative |
Negative |
| 003572-30: One (1) 750 ml bottle Turning Leaf® Merlot, opened, ~2/3 remaining |
Negative |
Negative |
| 003572-32: One (1) prescription medication bottle, empty |
Negative |
Trace (10.2ng) |
| 003572-33: One (1) box cutter razor with white residue |
Negative |
Positive (132ug) |
| 003572-34: One (1) Goody's® headache powder packet, empty |
Negative |
Negative |
