US swimmers case in Rio: What we know

captionA lawyer for Gunnar Bentz and Jack Conger said the pair were "shaken"
The CCTV footage seems routine. Four swimmers, fresh from celebrating their final competitions, return to the Olympic village in the early hours of the morning. They pass through the metal detector, taking items from their pockets - possibly wallets and phones - as they go. They appear relaxed.
But this short, unremarkable clip is now at the centre of an Olympic mystery and a police investigation because according to the four US Olympic gold medal winners - Ryan Lochte, Jimmy Feigen, Jack Conger, and Gunnar Bentz - they had just been robbed at gunpoint at a petrol station.
It seemed like a simple story at first, but the athletes' account has now been contradicted by Rio police who say they have evidence that the men were involved in a fight at the petrol station after one of them vandalised a toilet door, and that they invented the robbery to cover it up.
Lochte is now back in the US, Conger and Bentz were pulled off their plane by Brazilian police, and Feigen is also in Brazil and says he is co-operating with the authorities.
Since the story began on Sunday morning 14 August, it has taken more than a few twists and turns.



◾US swimmers 'damaged petrol station door'
The story emerges
On Sunday afternoon, six or so hours after the swimmers returned to the village. USA Today and Fox Sports Australia, citing Mr Lochte's mother, reported that four US athletes have been robbed on their way back from partying at Club France, part of the French hospitality area.
http://www.bbc.com/news/world-latin-america-37115680