If you guys still don't trust me, here is some proof of my role (I obtained these logs from EW, it is technically "tactical support"):
[11:00] <Earthworm|Away> sikh
[11:00] <Sikh> yeah
[11:00] <Sikh> ?
[11:00] <Earthworm|Away> did you try it out
[11:00] <Sikh> no
[11:00] <Earthworm|Away> ok
[11:00] <Sikh> i didn't know who
[11:00] <Earthworm|Away> that's fine
[11:00] <Sikh> and i didn't want to risk a mistake
[11:00] <Earthworm|Away> ok
[11:01] <Earthworm|Away> can you show me your role PM
[11:01] <Earthworm|Away> have you talked to anyone yet
[11:01] <Sikh> ?
[11:01] <Sikh> no
[11:01] <Earthworm|Away> well that's my theory
[11:01] <Sikh> did just what you told me
[11:01] <Sikh> but it saifd
[11:01] <Earthworm|Away> ok
[11:01] <Earthworm|Away> good
[11:01] <Earthworm|Away> can you paste your role PM
[11:02] <Sikh> k
[11:02] <Earthworm|Away> i have to go soon
[11:02] <Sikh> Dear Sikh Assassin,
[11:02] <Sikh> You are Portgas D. Ace.
<snip>
[11:03] <Sikh> You know the identity of your brother, Monkey D. Luffy. He is: Earthworm.
[11:03] <Sikh> You are allied with the Straw Hat Crew. You win if the Straw Hat Crew wins.
[11:03] <Sikh> earthworm
[11:03] <Sikh> who am i to trust?
[11:03] <Earthworm|Away> <snip>
[11:03] <Earthworm|Away> it cut off
[11:03] <Sikh> <snip>
[11:06] <Earthworm|Away> well it is day atm
[11:06] <Sikh> next night
[11:06] <Sikh> ?
[11:06] <Earthworm|Away> so it doesn't matter
[11:06] <Sikh> oh ok
[11:06] <Earthworm|Away> i'll PM you sometime later
[11:06] <Sikh> but who should i trust
[11:06] <Sikh> Raikage?
[11:06] <Earthworm|Away> no
[11:06] <Sikh> k
[11:06] <Earthworm|Away> he has a nothing role
[11:06] <Earthworm|Away> which could be mafia
[11:06] <Earthworm|Away> and is too suspicious
[11:06] <Sikh> alright
[11:06] <Earthworm|Away> [20:04:52] <Raikage> ok
[11:06] <Earthworm|Away> [20:05:38] <Raikage> Dear Raikage,
[11:06] <Earthworm|Away> [20:05:41] <Raikage> You are Gaimon.
[11:06] <Earthworm|Away> [20:05:42] <Raikage> After falling into a treasure chest and getting stuck in it, you now spend your time driving off pirates by hiding and scaring them with dire messages, as well as by shooting them with your pistol. This was all for the sake of protecting the treasure on your little island from others, but Monkey D. Luffy arrived after twenty years and opened your eyes to what was really important to you-the...
[11:06] <Earthworm|Away> [20:05:43] <Raikage> ...animals on the island. Now, you owe him a large debt and intend to repay him in the upcoming battle.
[11:06] <Earthworm|Away> [20:05:45] <Raikage> Currently, you hold no night role, being too occupied with keeping the animals on your island safe. Should someone ever relieve you of this duty, however, it may be possible for you to take on a larger role in helping out the Straw Hat Crew.
[11:06] <Earthworm|Away> [20:05:47] <Raikage> You are allied with the Straw Hat Crew. You win if the Straw Hat Crew wins.
[11:06] <Earthworm|Away> [20:09:36] <Raikage> who are you
[11:07] <Earthworm|Away> he's quite suspicious
[11:07] <Sikh> yeah
[11:07] <Sikh> i believe so too
[11:07] <Sikh> alright
[11:07] <Earthworm|Away> if they try to lynch you
[11:08] <Earthworm|Away> (they probably won't)
[11:08] <Earthworm|Away> just say "i'll claim to anyone who shows me a believable role"
[11:08] <Sikh> ok
[11:09] <Earthworm|Away> and tell them to look for a more solid lynch target
[11:09] <Sikh> alright
[11:09] <Earthworm|Away> ok bye
[11:09] <Sikh> baii
[11:09] <Sikh> thanks earthworm
[11:09] <Earthworm|Away> np
If we're fucking telling the truth, please fucking believe us. Thanks ;)
Stoo dies, in exactly ~26 hours. His fucking role is meant to unite the village.
As for looking into the means in which they are killed like how LonelyNess had said before:
Also, important flavor is always bolded, look at the info on Raikage's death. The part about him being "actually fried to a crisp" is bolded, which is obviously supposed to tip us off to the means of death being from Lightwolf, whereas the hole in EW's head is nothing more than idle flavor. You're looking too hard for stuff that isn't there, stoo.
There are a multitude of characters in One Piece that can make a hole in the head of someone (in this case Earthworm). There are only few things in the One Piece world that are able to leave holes in peoples bodies. Ussop's weapons are one way but there are also the Shichibukai members (Gmax was one of them) and Kizaru with his light beams. These could have been the possible killers of Earthworm.
Jimbo had also once stated that he is going to be changing the story a bit so that it is not as easy to see which claims are fake and which ones are actually real. Just because someone is in Luffy's crew in the anime does not mean that they are in the Straw Hat Crew in this game. Jimbo could have made them part of the World Government or CP9 for all we know, so we cannot actually verify if Cyzir's claim is legit.