Second Case Achievement in The Case of the Golden Idol

You technically only need to find the clues required for the solution. Every clue in the game is marked with a ?/! and will turn into a check mark when you fully interact with them to find all the relevant details.

Solution:
Sebastian Cloudsley, Lord of Blackfield, passed away in his bed. The cause of death was a head wound which occurred when he fell from a horse while he was hunting.