Some people here are probably listening to the Serial podcast, which investigates the evidence in a 15-year-old murder case in which the convicted killer still proclaims his innocence, and in which no physical evidence tying him to the scene was found.<p>The convicted killer has no alibi and claims he can't remember what happened that day (he was arrested several weeks after the murder)...he thinks he might have been in the library at the time of the murder to check his email, but that was either never checked or either logged...there weren't as many cameras around his high school back then, and cell phones didn't have GPS nor were the towers conclusive in their pings (in terms of locating where a phone call took place).<p>Listening to that podcast is like listening to a time capsule, and I wonder if a muddled-up murder story like that could ever happen again? We carry around too many location-enabled devices out of habit and we log in and communicate across too many online systems to not leave a trace of what we do on any given day. If you <i>were</i> intent on committing murder, and fabricating a foggy alibi...leaving your Fitbit or phone behind, even for a few hours, might be used as circumstantial evidence against you.