1) Faketoshi - Craig Wright - is not behind this. He maybe contributed a little but I don't even think that's accurate.
2) Even if he did trigger this there's far more people behind it, one person might trigger a sell off but they're not the only one involved. Just like 1 flake of snow might trigger an avalanche but there are millions involved.
I honestly think this is not the cause of one person or some conspiracy. It seems whenever there is a drastic price drop, we always try to run and find something/someone to place the blame on. Most of the time it's just the natural evolution of a parabolic price rise. The bear market has to come, and there has to be a period of consolidation and corrections.
Now with that being said and trying not to contradict myself, but if we are to place blame on anything, I would argue that the newbies that joined the crypto space in 2017 definitely are contributing to this drop. They have incredibly weak hands and will panic sell in a moments notice. Thank goodness most of these newbies fell for coins like EOS, XRP, STR, etc, so their panic selling doesn't have as much as an effect on BTC, but I'd say they have contributed to this drop in price.