Cyril Wecht, the famous forensic pathologist (yeah, that's right, I just said "famous forensic pathologist") who performed Daniel Smith's second autopsy said he could not determine the cause of death. According to the report, he was able to rule out heart disease, stroke, congenital illness and foul play. So he is absolutely, positively stumped.
OMFG, let's call in Dr. House.
This is a great mystery for the ages.
Pssst --- did you guys do a tox screen? Because when I did that semester abroad at this one really famous pathology school in Europe, they said, when all else fails, do that.