Though I still don't really believe it some say the Gox liquidator selling on market was one of the prime factors in Bitcoin's fall 2018 and that was only about 50,000 coins.
It were the bad technicals that made Bitcoin dive under the $6000 mark. You can draw a perfect descending triangle with so many lower highs and horizontal bottom touches that it broke out in the most bearish way.
The thing with news is that the media tends to grab the most obvious event as the main cause, while the reality is different. At most the hash war and the fear of more gox dumps increased the probability of a downward movement slightly.
The charts make the news, not vice versa.