Well, there's been an odd incident with a very perplexed young lady everyone knows and loves. With her mom's absence, and everyone is wondering why Autum would do what she did. There's a need to know what's going on; therefore, curiosity will want answers.
I think at the beginning, the Investigator will just do a basic investigation, but when the Doctor starts learning of things, he'll probably end up asking the Investigator for help.
Soulpelt is stuck with reality, so it'll be a while before he's able to post. So, you can either post as the Investigator coming in to do a routine suicide report, but has suspisions, and then hold a few NPC's of your choice (we can brainstorm some ideas on that). Then, when Soul returns and we go further in the story, the Investigator will have more. I wonder if she will literally suspect that the Doctor pushed Autum at the beginning, since it's farfetch for everyone to believe that Autum would actually attempt suicide, and he's the only eye witness.... Ummm....