Мафия 17. Blood Omen.

Did a guard come to me for additional clues?

A question to the game master about the guard's role. The guard receives clues about the person he indicates, i.e., through a non-deduction action (in which case, there's no point in asking the guard during the first night, as there haven't been any murders yet), or after the murder, the game master tells him an additional clue about the actual killer, not the suspected one? And also, will a newly converted Werewolf (if he ever appears) also kill at night, and what will be the maximum number of murders then?