Who did Ethan kill?

Question

In the episode Outlaws (S01E16), Charlie and Sayid discuss Ethan Rom, saying

SAYID: You killed a man.

CHARLIE: A man who killed one of us, who kidnapped Claire, who strung me up and left me for dead. He deserved to die. I'd do it again in a minute. Pardon me, if I'm fresh out of bad feeling.

Ethan did kidnap Claire, left Charlie for dead, and possibly attacked Jack, but I don't recall him killing anyone at this point, and his wikia page doesn't mention anything.

Who does Charlie think Ethan killed?

Answer 1

Scott Jackson, one of the very minor, forgettable characters:

From http://lostpedia.wikia.com/wiki/Scott_Jackson:

On day 28 Scott's corpse was found on the beach, with several broken bones, battered and bloody. He was allegedly murdered by Ethan when the group did not give Claire back, as he said he would kill the rest of the group one by one. Scott was the first person buried in the survivors' graveyard, and Hurley gave his eulogy at his funeral and apologized for mistaking him for Steve so often.

It was never outright confirmed that Ethan murdered him, but everybody assumed so.