The reason is after the ETC boom and secret mining meeting, the hack of Bitfinex. It is hard to estimate how and when Bitcoin recovers. It is another MtGox. 125K Bitcoin were stolen and Bitfinex might go under.
I think after will be seen how exactly the hack was done, the price will somehow recover. Now there is indeed a fear this can be a bug in code of btc. But as Bitfinex rep said https://www.reddit.com/user/zanetackett , they had all bitcoin in hot wallets, so the hack was not so problematic. Yes, it is extremely dumb, but they were forced to do so by some US institution (if I understand it correctly).
If you talk to God, you are praying; If God talks to you, you have schizophrenia.