I would expect to find what led them to state a conclusion on that report, otherwise what's the point of a report. All I saw was blunt force trauma, and based on that most every crash is suicide
I don't care about a cop shops opinion of evidence, not when it's to do with aviation.
The NTSB isn't funded to just ask the local cop shop what happened, they can state what the PD tells them, sure, but unless they come to that conclusion based on their own examination of whatever evidence, they need to stick to evidence they have and their own conclusions.
I didn't see anything on that report that even hinted to evidence, if it's top secret, than maybe they shouldn't even list their findings.