It's worth a try

Thanks :)

Been a while since I read it, but this.

http://www.mangago.me/read-manga/dead_tube/


There’s a girl in here too which likes killing, don’t know if you can call it getting off though.

http://www.mangago.me/read-manga/abnormal_kei_joshi/


And another one which you may like. Though it isn’t focused fully on the killing.

http://www.mangago.me/read-manga/zanuff_the_butcher/

Thanks for the recs!