I over hear someone suggest that the guy who used Facebook as an Alibi was very clever and that more of us should record our lives to prove where and what we had done. My instant thought was to the film Freeze Frame.
Sean Veil is an ultra paranoid murder suspect who takes to filming himself round the clock to provide an alibi, just in case he's ever accused of another crime. Problems arise however when the police do come calling and the one tape that can prove his innocence has mysteriously disappeared.