why would henery kill his brother and his uncle?

Henry left from the hotel room from the front door, not the tunnels. He left the letter opener on the bed.

Henry is definitely the killer. Remember the note found at Kelly's place? Study the "m" in "me". Then look at the note that Trish got from "Hunter" saying "Let's make this work in room..." the "m"'s are identical. Who really wrote the letter to Trish?...Henry. Case & point. Reasons are unknown, except for helping out his father, Wakefield, in getting revenge with the late Sheriff Mills.

It has to be Henry...he said he wouldn't take a shot at Wakefield if he had the chance, he planned to have the wedding at the island, and if you remember to the episode when Hunter died, Henry disappeared from Hunter's closet when he was hiding in it showing that he knew about the tunnels. And it can't be Jimmy because it had to be someone on the boat in order to kill Cousin Ben. So my final conclusion is that is it's Henry.

Henry isnt wakefields son...

I still think it is Henry! Henry is Wakefields son and the two have done all the murders together….it has to be someone who planned the return to the island for the wedding right, thereby getting Abby to come back? Henry! And someone who had access to all the guns, the sights appear to be [...]