Still, it would explain some things. Timothy Leary, the Dumbledore of the Muggle world; think of what his career could have been as a wizard.
Don't worry, that's not a spoiler...
...this is a spoiler.
So Harry was right all along. I've been reading the theories that the whole murder was a set-up; Dumbledore was already dying from the potion... but the impression I got was that Dumbledore was honestly afraid of Snape.
"R. A. B." The late Regulus Black, you think? Perhaps not the idiot everyone thought he was.