Reader Ron C notes in a comment that Serhiy Tihipko, Yanukovych's previous campaign manager, has come up a cropper too. Again from Maidan, a Yushchenko press outlet:

Information circulating in Kyiv is not joyful and is unpleasant for Tyhypko himself and for Ukrainian society.

An important and influential person actually has disappeared, and is not in contact with anyone. There are rumours of his death, of an attempt at suicide, and of him being in critical condition. There is an absence of clear refutation from Tyhypko himself, although logically this should occur, and obviously Tyhypko would be obligated to do this at least in regard to the reputation of his TAS-Bank.

...As of now, we have information that a few days ago Tyhypko tried to leave Ukraine with false documents. He was detained at passport control, but was released when he was recognized at the former head of the National Bank.

Who knows what this means; just because a guy doesn't return calls and doesn't respond to rumors does not mean necessarily that something bad has happened to him. But with the loss of Kirpa and Lyakh and the disappearance of others like Stasiuk and Bakai, one can't help but wonder if there's a pattern to it all.