Quote Finally Free: Personally I think Gabi did/does it. I think that she finally figures Nick out.
This may be her exit from DOOL.
I agree, it was Gabby. Not only because she's leavin but because when Sonny and Will talked about the gun at the apartment Sonny said he would return it tommorrow, then he put the bag with the gun in it on a shelf in the closet.
Will and Sonny left together. Later, shortly before Nick staggered into the square Gabby walked over to Will and Sonny, and when they asked about the court date and she calmly said it'll be O.K.
I think she realized after Abigail came to her what Nick was really capable of, since Abigail had nothing to do with pushing him into the river. She became afraid of him and worried about Ari's future and decided to kill him to protecdt her daughter and the people she loves.