No clue where it occured or why. There's at least 8 cuts of this on You Tube but all of them are short and the clarity poor, it's like someone recorded it after the chase was on for awhile using a cell phone for a camera recording it off the television. Then they ended it weird because you know a helicopter is not going to lose sight of the rider, so perhaps if the person recording the action would have not edited it short the cyclist got caught later? We'll never know.Never seen that before. Any clue where it happened?