I think he is in Serbia at the moment, sot the case would go to interpol and not a local police. I`ve contacted Saskatoon local police department to see if Jason Boyko is still there, but there is also SweetLou and some another people involved with the scam, so I think reporting to Interpol would be the best way to continue the process at the moment.
This would take some time and maybe not find him so fast and then there is a big possibility that never see my bitcoins again, but he would get probably some heavy charges anyway and stop with scamming.
What makes you think he's in Serbia right now? I think Interpol might be a poor choice to report his crimes to, since I suspect they're focused on much larger targets. SweetLou might be worth looking into though - it's possible he was in on the scam, but it's also very possible that he was dragged into this, and didn't know he was developing a website for a scammer when he was initially developing it.