▁this ▁is ▁when ▁he ▁k ills ▁her . ▁Kim ▁tracks ▁down ▁Park ' s ▁son , ▁who ▁is ▁a ▁te en ager ▁now , ▁and ▁has ▁him ▁test ify ▁in ▁court ▁against ▁K ang . ▁K ang ▁is ▁finally ▁sent enced ▁to ▁life ▁imprison ment . ▁ ▁Cast ▁ ▁Main ▁Kim ▁Y oon - se ok ▁as ▁Kim ▁Hy ung - min ▁Ju ▁Ji - ho on ▁as ▁K ang ▁T ae - oh ▁ ▁Support ing ▁ ▁Jin ▁Se on - ky u ▁as ▁Det ect ive ▁Jo ▁He o ▁Jin ▁as ▁Ji - he e ' s ▁grand m other ▁K won ▁So - hy un ▁as ▁Oh ▁Ji - he e ▁Kim ▁J ong - so o ▁as ▁Capt . ▁Ma - so o ▁Lee ▁B ong - ry un ▁as ▁K ang ▁So ok - ja ▁B ae ▁H ae - sun ▁as ▁Park ▁Mi - you ng ▁Jung ▁J ong - jo on ▁as ▁Det ect ive ▁Chief ▁Kim ▁Jo ong - ki ▁as ▁Law yer ▁Kim ▁Young - wo ong ▁as ▁Jung - b ong ▁Jung ▁Ki - sub ▁as ▁Det ect ive ▁Han ▁Je on ▁G ook - h wan ▁as ▁Hy ung - min ' s ▁father ▁W on ▁Hy un - jo on ▁as ▁Kim ▁Ok - ch ul ▁ ▁Special ▁appearance ▁Moon ▁Jung - he e ▁as ▁Kim ▁So o - min ▁Ko ▁Ch ang - se ok ▁as ▁Capt . ▁Jam - so o ▁ ▁Production ▁ ▁After ▁watching ▁the ▁episode ▁of