bbm: I'm no lawyer, but FWIW: I think there are one or two points, usually, at which "probable cause" may have to be "proved" to a judge -- one possibility being the commitment hearing (which I think can be waived by the defendant, not sure) as mentioned in my post just a post or two above. IMO, generally to prove "probable cause" does not require that great heaps of the evidence be revealed.
Thanks. I bet that if RB did do it (which I do believe he did so far) he must be spending his days quite nervous and curious as to how much evidence they have against him if it is true that niether he or his legal team is aware of the full evidence at this point.
On the other hand, if the perp was innocent (I am not pro defense in this case, I am just saying in a theoretical different case) it would be awful not knowing exactly why you are being held until the arraignment or commitment hearing.