For 10 points, name this playwright who penned Mourning Becomes Electra and Long Day's Journey Into Night .
In one of this man's works, the wife of Sam Evans has an affair with scientist Ned Darrell. That play about Nina Leeds is entitled Strange Interlude. In another of his plays, General Ezra Mannon is killed by his wife in a modern day updating of The (*) Oresteia. This author also created the actor James and his morphine-addicted wife Mary, both members of the Tyrone family. For 10 points, name this playwright who penned Mourning Becomes Electra and Long Day's Journey Into Night .
In one of this man's works, the wife of Sam Evans has an affair with scientist Ned Darrell.
Eugene {O'Neill}