Here is a theory............... lets assume GVP has ties with Red John,she probably thinks he's dead so she's out for revenge. She kills Ardiles and sets a trap up for JJ.L ,she then "hires" a hitman to stage a "shooting" to make it look like someone almost shot Rigsby.............. if you take a look at the scene where the hitman attempted to kill Rigsby,you can see he diverted his shot on purpose at the baby bag......................... and when Rigsby was behind the door he knew he wasn't standing up so he just shot the top off and was "shot" by GVP probably to make it look real. From then on she orchestrates her own kidnapping or was maybe kidnapped by the real RJ so he can tie up loose-ends. I don't think Rigsby has it in him to do these things either way.