Deuce on the River (tourney)

BAD BEAT

I became the bubble boy in this hand and I'm still a little bit in shock. How does K2s call an all-in? I didn't mind the call though because I was so far ahead. I thought I had it on the turn. All I had to do was dodge three deuces. He only had three outs. So what happens? Instead of getting into contention for a chance to win the tourney, I get sucked-out on the river. Of course, the only thoughts I have is what a donkey the caller is and then wondering if he cheated somehow. Why else would some idiot call an all-in and risk being the bubble boy?