This is not directed at you, specifically...but everyone should take a deep breath. Yes, she was not charged so she's "walking free," but that does not mean she is "getting away with it." The prosecutor can have her rearrested and charge her with the exact same charge at any time within the statute of limitations for the crime in question. It's pretty normal in very serious crimes like this, for this to happen. Everyone breathe...she's just out for now while they build a case. In the end, if obstruction is the highest crime they can come up with, I expect they would charge her with the felony obstruction charge again, and see it through then.