It turned out that the bride had caught new hubby and Eva "at it" and slapped Eva who fell to the floor; the bride then fled the room and the hubby beat Eva to death. Bride, however, assumed it was her fault that Eva was dead (after knocking her to the floor) and hubby didn't tell her any different. Gina witnessed the whole thing and had it on camera. Meanwhile, Gillian (who works with Vincent) pretended to be a cleaner and got into the bride's house and stole her wedding dress, on which there was DNA evidence linking bride to the murder scene. Vincent, who was in prison, arranged a visit from the bride's father and husband and forced a confession from the husband via his father-in-law for framing his daughter.
phew! Hope that makes sense!