Seems like that "screenshot" website is actually one of those Unicode fake domain "scams"... If you look REALLY closely at the screenshot of the chat window (https://gyazo.com/32af052983afae9863311219b60b1196) you can see the "o" in screenshot actually has a "dot" underneath it:
so the link is actually: http : //www.xn--screensht-sl7d.net/i/j5DkgThk.jpg
Which obviously attempts to download and install some sort of malware...
Yes, I got downloaded a zipfile from this with the picture you can see screenshot with fortunejack picture( https://gyazo.com/91c904d91bd2f8ed6519fb5ac3d96b05 the on the bottom) , I suspect it can be a trojan so they have been able to control my pc for a long time. Police is going through the files as we speak to confirm this. so the link is actually: http : //www.xn--screensht-sl7d.net/i/j5DkgThk.jpg
Which obviously attempts to download and install some sort of malware...