FOX reporting an arrest made too, and CBS on the radio here saying NO arrest has been made yet.
Taken into custody and charged are two different things. The media confuses the two all the time.
It may be that someone has been taken into custody, but not yet charged. Some in the media hear “taken into custody” and think “arrested”, others hear “not yet charged” and think “not arrested yet”.
It would seem, for once, that they can't all be wrong.