I've had some odd gut feelings about the toxicology taken as long as it has and wondering what in particular could cause such a wait. So last night I had an idea pop in my mind (what's left of it) and have been researching today. Now I will admit, I may be totally way way stretching, but I'm posting for others to ponder and give input as well.
*What IF WH didn't strangle her, shoot her or some other obvious cause, BUT instead injected her with a lethal dose of Cocaine?
IMO it wouldn't take much, since she wasn't a chronic user and from the research I have found, its really really hard to detect after 30 days post mortem.
Here is a small snip of some of the research I have found.
Page 7
snip>Several studies have demonstrated the lack of predictability of postmortem redistribution
rates of cocaine and its metabolites over time. Also, postmortem blood and urine cocaine and
its metabolites levels do not reflect the antemortem or perimortem values, and thus should not
be used to establish cause of death (Karch et al., 1998; McKinney et al., 1995; Stephens et al.,
2004; Yarema & Becker, 2005).
www.intechopen.
http://cdn.intechopen.com/pdfs-wm/31530.pdf