I think Heller has something awesome planned for the last third of the season.  I think something more happened in Jane's house when the camera cut away.  The fact that they don't show what happened is a huge clue that we haven't seen the whole story yet. There is some kind of Mentalist twist yet to be played.  because nothing since the explosion has made sense or even felt like The Mentalist                   the only one in the show that has even come close to Red John is Patrick Jane       Patrick Jane has been there since the first episode(Jane going to sleep under the RJ smiley face)          Jane has had a fucked up childhood(we haven't even seen all the trauma)            Jane has had a mental breakdown(multiple personality??)                  Jane has a sleeping disorder          RJ is supposed to be Jane's equal but evil   Jane is playing a game with himself         He's already killed two "Red Johns"     not only has he killed two men in cold blood he has gotten away with it        Jane killed his family and to deal with it he has created a group of serial killers all of them playing Red John giving himself something to do    Killing          that's how Red John knew his list      that's why RJ is always one step ahead of Jane.. impossible to catch