I admit I do not know all the facts here but as a former homicide detective, was he killed because he knew too much?

Other questions with incredibly obvious answers that do not require one to be a subject-matter expert include:

Do bears poop in the woods?

Does a one-legged duck swim in a circle?

Does a ten pound sack of flour make a really big biscuit?

Is the Pope Catholic and does he wear a funny hat?

As we reported at the time of Seth Rich's murder:

The real question, then, is: what did he know?

All we know so far is that this 27 year old was in charge of voter expansion data and had something to do with a program that tapped into the nationwide database of registered voters…

We're guessing this one is going to stay unsolved for a long, long time… unless people make a big enough stink the system feels the need to wheel a patsy out for it.