On July 4, 2011 Megadeth debuted a new song entitled "Public Enemy No. 1" at a show in Hamburg, Germany. According to the Public Enemy No. 1 Songfacts, the writing of the song was started by the band during a soundcheck in Croatia in 2010 and completed in Vienna, Austria a short while later.
Mustaine has said that "Public Enemy No. 1" was written about 1920s gangster Al Capone. The inspiration was a possible haunting…
Public enemy number one
Jail break and a smoking gun
You won't believe the things I've done
And the killing was just for fun