I don't see him in any different light than a criminal defense attorney. Both are simply doing a job, just trying to get the best outcome for their client. Seeing all the sneaky, and downright dishonest ways the State tries to secure convictions makes me root for almost anyone trying to beat them at their own game.
If he were an attorney, the criminal charge would be subornation of perjury under 18 U.S.C. § 1622.
The greatest issue with the current "justice" system is how frequently they go after citizens for victimless crimes. In many of these cases, the alleged victim is the government itself. This stems from the overwhelming urge many in government have to ensure that the citizenry is subjugated to the will of government, simply for the sake of it. That will eventually be their undoing...