Mafia 64. Albens Corvus

"стопроцентное" /= "точно знаю", it just means "one hundred percent sure"

"one hundred percent sure" = "I know for sure"

doesn't really differ from

It does differ. Because it was said in response to accusations of being a Mafia member. If Shamrock Rover had accused you of being a Mafia member, and you had responded with that same phrase, I wouldn't have even looked your way. But you immediately stated, after receiving the verification results, that the player who had neither behavior nor evidence against him was a one hundred percent Mafia member. Only someone who wasn't paying attention to the game and hadn't read the newspaper wouldn't have understood what your role was. Or at least, that you were one of the investigators. After the warning, you do almost the same thing again with another player. And you had already been exposed before. That's it.