Random Riddle: 1-18-2016

A car painted red, a car painted black.
Had an accident, the windshields did crack.
Inside the black car a man was found dead.
He would be unharmed, the driver of red.
Not charged with murder, no crime could they show.
The red car’s driver was told be could go.
With one dead body, just how could it be.
The red car’s driver could walk away free?
 
Riddle