I heard a rumour going around that Antony Cooper (a.k.a Locke's Dad) is the original Sawyer who was responsible for the island Sawyer's parents dying?

It's weird, because in a way it fits. He's got that really big house with the security guard, and has the money to pay for all that private healthcare. Yeah, he's definately swindled a few people in his life. He's obviously the really devious type to steal John's kidney and then try and run off and leave him.