Here's one ripped from the Halifax headlines.

On the night of November 24, 2006, in downtown Halifax, one car allegedly rear-ended another and the driver - who witnesses claim smelled of alcohol - left the scene before authorities were called or insurance exchanged.
A witness followed the driver to a nearby parking garage and confronted him in the hallway. He filmed the encounter on his cell phone.
What the witness may have thought was material useful for an isolated police case became the subject of headlines when the man in the videotape was later identified as Nova Scotia MLA and human resources minister Ernie Fage. Witness became reporter when the video was first aired on CBC and a police investigation intensified.

More frequently seen on TMZ exposing the shenanigans of young Hollywood, the cell phone video was now in the middle of a political scandal.

On January 4, Fage resigned from Conservative cabinet and more recently has taken a personal leave from caucus. An investigation into the incident wrapped up on Friday and local police say they are now reviewing the findings and consulting the appropriate authorities on what happens next. Meanwhile for Premier Rodney MacDonald the political consequences are yet to be determined.
Throughout all the twists, turns and accusations of this case what is apparent and interesting to me is that the story became headline news across the country due primarily to one man and his phone.

Oh, and an added note of interest on the story: The car rear-ended was occupied by two Halifax Chronicle-Herald journalists.