I have a theory about Peter's memory loss and the Haitian's involvement. I couldn't figure out why Peter was wearing the Haitian's necklace. There are dozens of good reasons why the Haitian might have mind-wiped Peter, but why leave behind the necklace, except to act as some kind of a message.
I think we'll have our answer when Pete catches up with Elle (Ellie? Is that her name? Veronica Mars/lightning girl, you know who I mean). What if Peter was working FOR the company, and Ellie was his partner? Possibly, the company's biggest enforcers were sent after the Haitian to bring him in and, obviously, failed. Haitian wiped peter, and sent him back to the company with his necklace around Peter's neck, as a message: "You sent the best you had after me, and this is what you get back. Leave me alone."
Why would Peter be working for the Company? No idea. Especially considering the note from "Adam", confirming that the Company was up to no good. It's just a theory, after all...