I feel like crying-

Thriller crime, psychological,
http://www.mangago.zone/read-manga/baroque_chrysalis/

Tragedy cop x drug dealer(?)
http://www.mangago.zone/read-manga/boys_next_door/

Rather than tragedy in terms of blood etc it's tragedy of the heart.
http://www.mangago.zone/read-manga/hana_no_miyako_de/

Psychological and quite dark. Faces mature themes.
http://www.mangago.zone/read-manga/coponicus_no_kokyuu/

Tragedy... Or is it?
http://www.mangago.zone/read-manga/hanazono_no_kioku/

Oh, I forgot to add this:

Story focused mainly on what r*pe cause to the person that went through it. The mental impact and the difficultly of overcoming an traumatic experience.
I'm just gonna say this in this yaoi r*pe and non consent aren't glorified but considered the main cause of the plot whole ordeal so.
http://www.mangago.zone/read-manga/zankoku_na_kami_ga_shihai_suru/

Gah dayum