Can someone explain to me how the it is a conspiracy to want a simple investigation into a circumstance that any honest person must admit looks suspicious from the outside? I don't doubt that Seth Rich was probably just a robbery gone wrong but why is it so taboo to look into it lol or at least out pressure on Assange to confirm or deny whether he had any involvement in Wikileaks.
The police investigate homicides. In this situation, uninformed denizens of the internet and beyond are either unaware of that, or don't believe it because something they read on the Internet (or saw from disgusting hacks like Hannity, who prize party over anything else) suggested they should instead believe a completely unfounded conspiracy that is being propagated mostly for political purposes.
There is nothing here, and because of people trying to use the murder to play partisan games, they are prolonging the emotional suffering of the family.
On top of that the conspiracy doesn't even make any sense since Rich would have known that the DNC emails showed nothing.