[Lauren [is Lost]]

I agree that Keamy can be described as evil, but from his point of view he was just doing what he had to to show Ben that he means business. Ben clearly didnt believe that Keamy would actually kill Alex. So when he did, it was Keamy saying to Ben 'We do not mess about. We're here on business and we will get what we want'. It was a shock tactic to try and scare Ben into going along with whatever they're after. Not that i think it will work...sure Ben was shocked, but now he's just going to be even more determined to get what he wants.