Wonderful piece Jenna.
The closest I came to a situation like yours was around 2010. I had spoken to a work friend, someone I had know for years on a Tuesday, I think it was and chatted about business and the weather, probably about the 49ers and a few other things. He seemed fine, chipper, engaged and doing okay. Forty-eight later he was dead. Passenger seat linked with a hose to the exhaust pipe of his pickup. Found by his partner and wife. No note that I was aware of. No explanation - none that made any sense.
Thought about that everyday for a year. Kept seeing his face, hearing his voice, wondering if there were any clues in my last conversation with him. Never sorted that out. Like a movie ending before we find out what happened.
Thanks for sharing.