A phone number appeared on the TV screen regarding the crash of Oceanic 815:

888-548-0034

When you give it a call you hear a nice little message.

As for who is Ben’s contact on the ship, my money is on Michael, Walt’s father.

And here’s another theory, albeit a stretch.  Remeber that one episode that had the backstory of Ben’s childhood and how he was in love with that little girl.  What if that girl was the one he shot last night?  That the girl is searching for Ben, a long lost love.  Yup, a bit of a strech, but who knows?