When he threw the wine at deVries during that interview he used his right hand. Seems like he would use his dominant hand to get perfect aim for that.
http://www.youtube.com/watch?v=oyZEM7ECohs&NR=1
Yes I said that earlier too. And one would think if he is right hand dominant, that that is the arm that he would use primarily to strike, unless it was already "preoccupied" such as in holding her against the wall trying to rob her or get her pin numbers or such. She fought back, and he went ballistic at any resistance or attempts even to strike at him.
His own words imply a single elbow strike and subsequent strangling are what he did to kill her. And it still may be true. But maybe he is so deranged that he would lie there while he had a massively swollen left knuckle?
I think it is worse for him to admit he struck her with his elbow, because the elbow is a massive weapon! Far easier to break many boards with an elbow strike, e.g., than a punch, and the elbow doesn't break unlike knuckles when you hit something hard. So why would he admit to using his elbow and say it if it really was a punch? I can't see what he would gain by lying and saying he did it with his elbow, when it was a punch. But my not seeing it is not sufficient proof of anything that occurred.
That's why I went with the elbow. And we have not seen any photos of the back of his elbows. But again, the elbow is so massive, that it would not likely be injured from a massive blow to bone structure.
Botom line is the evidence. And, of course, as it has been noted here today, he could claim he broke his knuckle in frustration at what had transpired.
And I have stated that the indentation to Stephany's face can be matched to whatever it was that caused her skulland brain trauma--be it elbow, knuckle, tennis racquet or anything else.