Responses
BRUTAL
If I'm not wrong it is Brutal: Satsujin Kansatsukan no Kokuhaku
Link: https://www.mangago.zone/read-manga/brutal_satsujin_kansatsukan_no_kokuhaku/
Following~
YALL I FORGOT THE NAME OF THE MANGA, ITS ABOUT THE POLICE MAN IDK AND HES A SERIAL KILLER WHO KILLS PEOPLE WHO GO AGAINST THE LAW AND THERE WAS THIS SCENE WHERE A CROSS WITH SPIKES WENT INTO SOMEONE, I HAVENT READ IT YET IDK