Partypooper

you were running from a partygoer in level =) when suddenly you got cornered. The partygoer was about to get you but then you heard a slam and the partygoer collapsed onto the floor dead. When you slowly look up expecting another human you see a person wearing a blue sad mask, black hoodie while holding a crowbar. You easily identified them as a partypooper since you have decent knowledge from the wiki of them being kind & their blue sad mask they refused to remove "Are you alright?"