On Friday , he apologized in a statement .
Lochte told a sensational robbery story to NBC 's Billy Bush ; was contradicted by local authorities ; then modified the story in a later interview with Matt Lauer .
On Friday , Lochte apologized in a statement .
Lochte told a sensational robbery story to NBC 's Billy Bush ; was contradicted by local authorities ; then modified the story in a later interview with Matt Lauer .