I only have five minutes once again. I see my list was a little pointless as SpM already listed them.
Aiwendil's death - no clue. I'll analyse it when I have time later (should be about 3 hours).
Abercrombie's death - I have thoughts, but they'll have to wait as I'm pressed for time. They mirror SpM's, mostly, but with less emphasis on my guilt.
A suggestion: Each potentially guilty person should have four villagers look into them and offer analyses.