Submission + - Collar-bomber tracked by Gmail accesses (bbc.co.uk)
Unfortunately for him, sufficient records have been kept that the location and time that the account was set up can be identified, and also for a number of accesses. This information combined with "CCTV footage and motor vehicle records" allowed the police to put an identity to the suspect, and arrange for his arrest and to start extradition proceedings.
So, if you're planning an extortion, don't drive your car to the internet cafe, don't set up the account from an airport, wear anonymous clothes (like Jason Bourne does?) and do all your accesses through hacked shell accounts somewhere in Outer Mongolia.
But this being Slashdot, everyone knew that already.