wtf at sammy farha razz hand

[sleepi]

Razz:
Sam Farha x-x-{5-Clubs}{10-Spades}{9-Hearts}{5-Diamonds}-x
Raymond Dehkharghani {A-Clubs}{10-Diamonds}{Q-Spades}
David Oppenheim x-x-{6-Hearts}{5-Hearts}{A-Diamonds}{2-Spades}-x

On third street, Farha raises. Dehkharghani reraises and Oppenheim calls. On fourth street, Oppenheim bets and both call. On fifth street, Oppenheim bets and Farha calls. Dehkharghani folds. On sixth street, Oppenheim bets and Farha raises. Oppenheim calls. On seventh street, Oppenheim checks. Farha bets and Oppenheim calls. He shows {7-Clubs}{4-Diamonds}{4-Spades} for the A-2-4-5-6 low and Farha mucks. Farha goes out a few hands later and Oppenheim has 270,000.

you can probably see the hand more clearly on pokernews.com
i don't play razz and maybe i'm wrong, but what the hell is sammy doing in this hand? isn't it already impossible for sammy to beat ONLY david's up cards no matter what cards sammy has in the hole? does he really think david's down cards are K-J-10?