Help find me a tv show

Also i remember when i was younger i watched a show i think it was something like a reallity show and i badly want to watch again,i tell you what i remeber...the ending was a housband that found wife cheating and then kill them both or just the lover but i think both,his pregnant dauther hanged himself and i think she was in psyhatri but idk why she ended ther,and the housbend gets shots when trying to kill somebody..i think the guys that "recorded" the show but i don't really sure if it was long time ago when i whatched the show but it was brutal \m/