Take one of these with you.-snip-
a different car pulled up, and two men in suits with briefcases got out, knocked on the door very aggressively, waited a few minutes, then got in the car and left.
Two 47's?
[img width=500 ]http://media.giantbomb.com/uploads/0/3107/195020-hitman_briefcase.jpg[/img]Anyways, on-topic, try to take a picture as you said and see if you can upload it then reverse google image search it to see if there is anything about them online.
it's possible considering Agent 47 is a clone (I believe.)
-sneep-You're forgeted