Мафия 68. The Witcher II

Are you saying that it wasn't just the Mafia who killed him, but specifically the Boss?

If the Boss had killed him, the murder would be described the same way as any Mafia killing.
Okay, take a look:

"Elf Leader" - the first attempt on Yorvet fails, and he kills his assassin.

"Witcher" - he doesn't kill for the Mafia (it doesn't work if he happens to encounter Yorvet's defense).

If Lynx were Roche, Yorvet would have died. If Yorvet had killed him, there wouldn't be any mention of Lynx coming to the elves herself. If you look at the sequence of moves, everything adds up. All that remains is to figure out why the Mafia weren't killed, maybe the assassination is interrupted when Yorvet is being targeted, or they were luring him, or something else.
For additional information, you can search for it online. And most likely, you need to look for clues related to the girl, that's also important.
Okay, I might not log in today. I hope to vote tomorrow if my health allows. The main thing is to find Yorvet, and we will practically be the winners.