Your funds seems to end up on this address 16S5ixVGo3AuD4SvkgLHWfSbEz1rFFr36P (The BTC part)
#1. File a police report
#2. Send e-mail to the biggest exchanges to blacklist that address together with your police report and ID that helps, they need to verify you
#3. Keep an eye on 16S5ixVGo3AuD4SvkgLHWfSbEz1rFFr36P in case it moves, most probably to an exchange, if you have a full node on your local system add notifications in case the balance change moves.
#4. try to remember any biteclicks or e-mails you have opened from unknown people.
#5. Do a quick search on your computer if you have any keylogger och clipboard sniffer installed
#6. change all your passwords
#7. repeat number 3
/KX
This 100%. Do this if you haven't. This is theft and BTC isn't trivial to cash out. If they aren't a professional you're odds aren't all that bad to get something back.