In addition to what Anaris said, reporting the assassin's name is not a good idea. You may not know who did it. It also completely invalidates the "plausible deniability" aspect of infiltrators.
Having said that, I like the idea of a player having the option to let their character die after receiving a serious wound from an infiltrator. Or possibly any time a character is seriously wounded, give the player an option of dying from the wound, with the wound's source recorded in the family history. "Beaten to death by a peasant mob." "Slain by an unknown assassin." Etc....
The messages would have to make it clear that these are different from heroic death, etc.
