What do you make of the treatment of Richard Jewell during the Olympic's bombing investigation?
The "framing" going on is by over-zealous investigators who become convinced that they know who did it and who take every step to prove their presumption correct. They become blind to contrary evidence and they exert every pressure on their suspect in order to incriminate them.
I doubt that there have been many framings where the framers thought that the suspect was innocent. The motive is to convict the "guilty" despite a lack of sufficient evidence. For the innocent suspect the effect is the same whether the investigators believed them guilty or not.
That was stupidity on the part of the feds, NBC, CNN and others in the media. Why do you ask? That has nothing to do with police homicide detectives and framing innocent people.
Note that in the end Jewell was not convicted of anything in the end.