If you check https://bitcoinwisdom.com/, you will see a lot of bitcoin was sold on the exchanges at round 7:30 UTC on 14th, causing the price to go down very quickly.
I dont know why these fools are selling their btc at that too much low price. Why dont they wait for next few montha and sell btc at 400 above. Its the time to buy as much as you can. No one determine its price it spaculation it will go higher in just next few months. Lets hope for the best
No idea.
Probably some bitcoiners panic-sold their bitcoin after seeing the price crashed over 20% in a day (bitstamp price went from $250 to $200) and further crashed another 20% within 30 minutes (bitstamp price went from $205 to $152).