Here's another.
DailyKos wrote:As bad as this story has become now that we know that the Medical Examiner never took any pictures at the scene because he couldn't be bothered to replace the batteries in his camera, that the were never any fingerprint test done on Officer Darren Wilson's weapon, that Wilson's story changed from the time he talked to investigators to when he spoke to the Grand Jury and he was never cross-examined on that fact...
We now know the St. Louis Prosecutor Bob McCulloch was fully aware that "Witness #40" (who has been revealed to be Sandra McElroy), not only posted racist rants on her facebook and in her personal journal, not only was an open supporter of Darren Wilson and posted pictures of Michael Brown's dead body with the caption "Justice Served", but that Mr. McCulloch knew this witness was lying about even being at the scene of the shooting yet he still put her up on the stand for the Grand Jury anyway.
McCulloch explained that he decided to let “anyone who claimed to have witnessed anything” testify before the jurors, out of the belief that he would be criticized no matter how he approached the possible prosecution of Officer Darren Wilson, who Brown following a confrontation this past August.
He also admitted that the testimony of “Witness 40,” identified in a grand jury transcript as 45-year-old Sandra McElroy, lacked credibility.
“This lady clearly wasn’t present when this occurred,” McCulloch said. “She recounted a statement that was right out of the newspaper about Wilson’s actions, and right down the line with Wilson’s actions. Even though I’m sure she was nowhere near the place.”
Why exactly would a prosecutor let people that he believes are lying testify before a Grand Jury - particularly when that witness just happens to be one of the couple that matches the story claimed by Officer Wilson.
So when people are sure that "no reasonable people" could believe that the Grand Jury made a wrongful decision, it's revelations like this that make it clear exactly why people have little confidence in this Grand Juries results and the validity of their decision.