There's still the slight possibility that RG was at the helm and orchestrated the plan to kill Jane. After BG accompanied RG to her daughter's wedding on New Year's Eve, he may have returned home with the idea that he would continue to lead RG on regarding leaving Jane as he'd been doing all along. Maybe Bob thought that having Oregon, the third party, on board would buy him time by getting RG off his back about moving in with her full time. Based on her writings, RG had been intense about their relationship becoming legit for some time. It's possible that in b's mind, he thought he could keep things going as usual without loosing Jane. But if Jane had discovered the whole truth about his involvement with RG, he was going to loose her anyway, so who knows if that's what caused him to take the actions that we suspect he did that led to Jane's death.
LE is probably trying to get all the facts straight as to all who were in on the plan from the beginning. It's odd that RG left her job for good on the day Jane was murdered. Was she that confident that everyone would believe the scenario that had been set up? RG sure is an anxious one. :waitasec: Seems as if she must have known something was up.