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I think what is being sought out here is your interpretation of the narrative of what happened.
There is a boatload of circumstantial evidence (or 'speculation,' as you've referenced it) pointing at both accused parties which is, in essence, why they have been accused.
You stated above that you felt M1 was appropriate for MS but not DM, and then reconsidered, stating acquittal for both because it was an accident.
I think your viewpoint would be welcomed here, particularly if it was elaborated on -- the consensus here seems to be M1 for DM with some on the fence re: M1 for MS. An opposing view is welcomed in a debate/discussion, and I think I can speak freely for most posters here that we'd be curious to hear yours, with some further reasoning.
There's lots of intelligent thought being thrown around this forum.
I look forward to reading yours, sincerely.