Well, unless the cop found a knife to replace his taser, the cop was stabbed
Okay, so i reread the whole thing and I think it went down in this order after they reemerge from the basement
Sangwoo has the knife and the officer has the tazer---
officer attempts to taze Sangwoo, who dodges then slashes at the officer, who drops the tazer---
officer runs away and picks up the tazer along the way--
skipping movement intricacies---
the only one with a knife that could make someone bleed is still Sangwoo if the officer doesn't have any hidden weapons on him (which I doubt he does) and noting how the officer looks down at the place where the knife would have hit while sweating whereas Sangwoo simply stares at it with malicious intent and that there are only 2 pair of feet on the floor with blood (meaning there is no bum for all the bum theories)---
then the officer is currently bleeding. RIP in pieces.
No, he had a pocket knife.
Okay, whose is bleeding. Is everything going to come to a head? Will Sangwoo win? Will the cop? How screwed is Bum in all this?