I can't really say anything just cause Koogi is always unexpected but from what I see:
1. Sangwoo didn't stab the officer most likely. Judging from his face at the end, it's not a face he'd make if he did stab Seungbae
2. Either Sangoo got stabbed by Seongbae or Bum. Though considering that Seungbae never had a knife but a taser, it's least likely he stabbed Sangwoo but it's possible he may have gotten one when he was in the kitchen running away from Sangwoo
3. Bum got in the middle and got stabbed himself
But Koogi is always unpredictable and loves torturing us ヾ(❀╹◡╹)ノ~
I honestly think Sangwoo stabbed himself to make it look like his house was broken into, AND he was attacked.
I mostly think that because it would be random and cliche as hell if bum just SUDDENLY jumped in.
Plus i only saw two pairs of feet, so... no bum, i assume.
I really don't think the cop would have been able to twist the knife around, honestly.
But another possible thing that could have happened is that the cop made that face because he was stabbed, and sangwoo made a face like "Shit, i missed my target" because he didn't stab something important and vital
idk for some reason I just feel like Sangwoo isn't going to do anything to seungbae. Like legit I feel like he's just gonna go "why're you here" *insert creepy ass smile*
But then again anything can happen since koogi loves making us die
yea if anything Sangwoo can use this to his advantage and get anything involving him thrown out of the case, because the cop is in his house w/o a warrant he could say Seungbae is trying to plant evidence to make him look bad so he can move up in his career.
I'm not sure if it's just Sangwoo's trauma but the fact that he panicked when Bum was unconscious, may be a spark of caring? (๑•ㅂ•)و✧
And btw that page when Bum came to the surface when Sangwoo tried drowning him, his face made him the #1 most cute and fluffy uke, I have no regrets
I see Sangwoo as selfish though? He gets panic because unconscious Bum triggers him. Not caring. Hmm
What care ┑( ̄Д  ̄)┍ it,s because of his truma get real people
poor igen and kasan ㅜㅜ i just want them to cuddle and say sweet nothings to each other (● ̄(エ) ̄●)