The Toxicology report for AxC will help, when we get to see it. But I think you have a point with the feces being all over the floor. I think that may point to poison over drugs. Opiates for example, tend to have the opposite effect. Drugs that would lower his bp, sedate, cause coma would have probably made getting up impossible. My gut says he did himself in. And if not, seems it would be difficult to prove otherwise unless ZP can be connected to other deaths and crimes.
Are there any common drugs that cause bowels to purge, don't fully incapacitate, then kill? Perhaps it was a cocktail of drugs and poison.
