In the film, did he murder two women before he killed his wife?
Unless I just have a terrible attention span (which I sometimes do), didn't Marx (Durst) kill two women in this film, before he killed his wife?
His wife finds the bloody underwear of the 2nd victim.
The fact that she approaches him with it rather than calling the police was really stupid, obviously.
So they are speculating that Marx (Durst) is a serial killer?
Maybe he is.
In real life, it is thought that he may have killed at least 1 teenaged girl, but that was in the 1990s.
link: http://www.cbsnews.com/news/robert-durst-may-be-investigated-disappearance-two-teenage-girls-california/