I think he is an accomplice

accomplice for sure only if you watched next weeks previews. :)

innocent

No - Jimmy is "the least likely suspect" and therefore, of course, the MOST likely suspect, since every experienced viewer will be looking for "the least likely suspect" from episode 1. This is what normally makes serial killer thrillers so obvious. Second of all, there is really no point in revealing the second killer until episode 13, to keep suspense at a max.

Jimmy is the red herring. If the sheriff new he was working with wakefield why would he trade his life for Jimmy's. I think Henry is the killer. because of the red eye thing.

He is still an accomplice, in my eyes. I wonder how come they revealed him so quickly. But oh well... they also revealed Wakefield. Oh the drama! Jimmy and Abby half-brothers and lovers. wow!

I think that what's happening on the island is very complicated! I think that something major happened that kicked off Wakefield's killing rampage 7 years earlier. Whatever it was I think that sides were taken and therefore alliances were formed. There seems to be a lot of tension between the year-round islanders and the summer folk. The summer-folk are very wealthy and, like the Real Estate Mogul Thomas Wellington, are used to getting WHATEVER they want (like perhaps turning the entire island into a resort). The year-round residents resent this. I think that Jimmy is involved, maybe somehow in alliance even with Wakefield, but I don't think that he is a cold-blooded killer.

The sheriff wouldn't have made a deal with Wakefield to save Jimmy and tell Abby to have a happy life with him if he thought Jimmy was involved.

I think that Charlie told Jimmy that Wakefield was alive, and they were both working together to track him, to protect Abby.

And I'm not saying all that just cause he's hot. :) I don't think that you can write a murder mystery without a red herring, and perhaps Jimmy is going to die because of it. Oh the horror...

Also, is it really safe to assume that Wakefield's kid is the second killer? The person might not know...