Ok. Good news. It's a minor bug that does not affect anything
. Bad news, I can't see how that has happened
.
When you kill your mark, mission_random_hits_revenge_mark_first_name and mission_random_hits_revenge_mark_second_name get written and they are nullified only after you have successfully dealt with revenge. Have you met/dealt with angry relatives earlier in game?
I made quick and simple test, accepted a job, killed the mark, flew to the main station, saved and checked the save file. All fine. Then I jumped to another system and forced a warning hunter to appear and the message was fine. So at least in a simple scenario it seems to work.
I'll do some more tests, but don't hold your breath. Thanks for reporting and keep reporting if/when this happens again.
Edit. And that save file snippet was after the incident? Right?
2nd edit. Trying to narrow things here. Do you remember the type of the mark ship?
3rd edit. I think I found it. Did your mark use the escape pod?