Witness tampering? That's old and busted, run-of-the-mill, hardly worthy of news. How about when the person doing the tampering is a police officer? Yeah, suddenly you're interested.
Christopher Eaton, the (former, at this point) sheriff of Barren County, Kentucky, was convicted of witness tampering for ordering officers under his command to make false statements in an FBI investigation into excessive use of force on a suspect named Billy Stinnett.