When trying to figure out what happened to Brian consult Occam's Razor.
You there.
Stop making sense.
I've investigated a lot of stuff and way over 90% of the time the simplest most obvious explanation is exactly what happened. What you do is take the most likely thing and work to disprove it.
The young man lost his temper and killed the girl. They were known to physically attack one another. He got home and the world was closing in on him so he offed himself. Duh.
