In Baseball Hacking Case, Blunder Helps FBI Solve One Riddle (Where?) But Not Another (Who?)

As F.B.I. agents try to build a case against personnel in the St. Louis Cardinals’ front office who are accused of breaking into the network that housed the Houston Astros’ closely guarded baseball intelligence, they are struggling with one particular aspect of the investigation: determining who, specifically, had his hands on the keyboard.

NY Times