Well, it looks like it's confirmed: Rob Lowe is leaving "Brothers & Sisters".
According to EW's Michael Ausiello, the actor will depart the ABC drama later this season.
Lowe felt that he and his character of Robert were being underused on the show, and asked that he be released from his contract, a wish that ABC has now granted.
The way of Robert's departure? It's either up to a divorce or death, if you want to believe Mike's guesses.