Hmm, I see what you mean. How about something like this?
Name: Dr. Peter Hoffman
Role: Bio-terrorist
Affilition: Unknown
Details: Dr. Hoffman is a bio-terrorist who designs his pathogens using viruses with alien origins. He tests his devised agents in the act by
unleashing them on civilian populations in crowded areas. Victims die from extremely acute symptoms minutes after exposure. It is not known who he is working for or where he gets his alien samples from. His research may be helpful in our own toxic weapons program.
Status: Interpol notified
But in the end, he is still a bio-terrorist, so alien viruses or not general anti-terror organizations may handle him. X-com may be interested in him for only its own research in that logic, I guess, his research notes about alien tissue etc. Or just pass the dossier to the Council.
BTW where's the pic from?
The pic is from a villain (I found it in Google) in Fringe who shows up in a couple of episodes. I only got his face, the character and the name is not his. Could be changed.