He could lay the fake nail on the floor on purpose... but why? And if not, Sangwoo wouldn't ever committed this mistake... he always cleans the blood off the floor after killing... so how could he forgot that? How did that fake nail get in the kitchen? I don't really get it.
Anyways i was feeling exactly what the cop was going through... the anxiety maaan
The beginning of this one. Those are the nails he gets out of the drawer and puts in his pocket.
http://www.mangago.zone/read-manga/killing_stalking/mf/m_chapter-61/pg-8/
Why are these chapters so short? IM CRYING
Lol, bed time story? Can you fall asleep with all those smutty hotness & angst that have been going on? I'd either be full with rushing adrenaline or be too sad to immediately sleep. Even if I manage to, I might end up dreaming about it, & I hope I dream of the hot stuff & not the sad stuff... ╮( ̄▽ ̄)╭
Unfortunately these chapters are just too short.... I need more... MORE! Miss Jian Yi and Zheng Xi tho..