I thought it was him.....and for those who think that if this isn't true JK would squash it on her site...have you noticed how much she loves the rumors! she wouldn't squash this one even if it isn't true. I was just thinking...what if it were three people's first initials? I know weird..but if it is Regulus he must be one powerful wizard, because he would of had to drink the green stuff....and then the lake water...and then ward of the dead people.......