There's no blood, which means it's not 100% certain that he killed the Mafia member, which means the Doctor could have been healing from mana drain, not from Mafia attacks, because in the first night, instead of the standard healing from Mafia attacks (at least for me), he healed himself.
So, let me explain. The Serial Killer is doing a great job again. He only needs one bloody murder, and that's it, because all the roles are being revealed. And now he can kill with a regular kill and see which of the players knows which murder was committed by the Mafia (that's the Mafia, so :)).
Right now, we have six town members left, and I highly doubt they will be unanimous in their votes. Therefore, I suggest we don't waste votes just like that – we can't afford to. Ney, don't you want to vote for someone in red?

В тихой однообразной жизни всегда так бывает: каждый отдельный день бесконечно долог, но месяцы и годы мчатся с непостижимой быстротой.
I wanted to offer you some flowers, but a crown would suit a princess like you much better
Смысл жизни в том, что жизнь на тебе не заканчивается