Either Shannan was murdered, or if we agree with the SCPD theory, she just wandered off into the marsh while disrobing, got lost and stumbled and fell into a shallow puddle and drowned. This odd behavior was the result of her drug induced psychotic episode.
As with most absurd theories, the SCPD explanation has some semblance of truth.
- Whatever drug Dr. Hackett gave her could have had some negative cognitive effect on Shannan. But the the good doctor surely would not release a patient who was impaired alone, would he? Not likely.
- Shannan could have disrobed, as of the effects of hypothermia, except it was not that cold that morning.
- Shannan could have drowned in a puddle of water, but there was no evidence of drowning. She could have been choked to death, or had her head held down in a puddle of water as well. All likely alternative scenarios.
Most of the people involved with Shannan that night had been convicted criminals, or were partaking in criminal activity
or, found to have lied. The likelihood that Shannan died innocently is just not reasonable.
MOO