Agree that the latest press conference was disingenuous at best. It seems that they are suggesting that the ACARS was turned off prior to the last VHF call from the aircraft.....made by the FO. This would suggest they are trying to say either
a. the Captain and FO are both implicit in all this, or
b. the Captain had already been 'silenced'
The fact that the FO was alive and speaking on the radio AFTER the initial 'disturbing actions' seem to have taken place suggests he was involved...
p.s either they are suggesting the FO is the man in the spotlight, or they really are completely incompetent and are just throwing speculation to the wind in the pressers. Considering the information that has obviously NOT been released in previous pressers one can really only assume it's the former.