“But there are separate statutes dealing specifically with those kinds of matters.”
Let’s say a dirty BP agent is being paid off by a Mexican drug cartel. During a drug bust at the border, he sees that the drug mule works for the opposition cartel and shoots the guy, looking for a nice xmas bonus from Tijuana.
What “statute” would that fall under?
Having said that, the prosecutor in question would have to go through the agent's financial background, and dig up records/evidence/testimony with regards to the bribes in order to establish the quid pro quo between the two parties. Having done all of that he could then legitimately claim that the agent in question had probable cause to take down the the "drug mule" from the opposing cartel.
Of course, Sutton never attempted to claim that R & C were "on the take". So you are just grasping at straws.