A personal mission (Jai).
Keith wasn't dead.

This knowledge pounded through Marissa's head every second of her waking days, most significantly when she was dealing with Keith's family.  Dinah had made the gesture of inviting Marissa to come out to be with the family for the funeral preparations which meant that she was surrounded at any given moment by someone who should know that Keith was alive.  Dinah was easy to fool; the woman's grief was palpable and she voluntarily kept herself distracted by alternately working on Mia's wedding and the funeral.  Oliver never acknowledged her, which was fine.  Men have their own ways of grieving.  She hadn't had much contact with Mia, either, but that was by design.  Marissa still hadn't forgiven herself for letting Mia die so it was already awkward.  Sin, however, had been harder to shake.  The small woman seemed to be looking right through Marissa at every turn.  Keith was right; she was creepy. Marissa was fairly certain she knew something was wrong, which made Marissa faintly paranoid.  Keith wasn't dead.  She knew it and she really couldn't sit around and do nothing about it.

Left alone in Keith's room, Marissa found one of his old cellphones.  A few moments later she had his contact list and there was a particular number she was looking for.

I need to talk to someone about Keith. Star Tower Hotel restaurant 4pm. -MW

She had been generous with the time, but she knew Jai West was fast so Marissa was already there waiting when she sent the text.