Who is Reinhold Messner?

A famous mountaineer.

What does he have to do with this album?

Absolutely nothing! Reinhold Messner was the name Darren Jessee, and others in his high school, used on fake IDs. Supposedly, there were many kids using these IDs. This is where the lines "and then i ended up in jail/(refrain)/...but just for a day/seems the police had made a computer mistake/said there must be thousands like me with the/same name" in the song Regrets comes from, I think. Nothing but a coincidece, although the band admits they could have heard the mountaineer's name before and it stuck on a subliminal level.