The Verge:

None of the witnesses saw Graham’s face in February, and Graham himself wasn’t talking. He was physically similar to the man who held up the bank in February — but it was only enough to keep the case going, not enough to make it stick.

So investigators tried a new trick: they called Google. In an affidavit filed on February 8th, nearly a year after the initial robbery, the FBI requested location data pulled from Graham’s Samsung Galaxy S5. Investigators had already gone to Graham’s wireless carrier, AT&T, but Google’s data was more precise, potentially placing Graham inside the bank at the time the robbery was taking place.

And:

That data is collected as the result of a little-known Google feature that builds a comprehensive history of where a user has been — information that’s proved valuable to police and advertisers alike.

Every breath you take
Every move you make
Every bond you break
Every step you take
I’ll be watching you
— The Police