The recent outrage of the US police has provoked public outcry among the American citizens.
Owner of a black BMW put a sticker on the bumper, that says "shoot a cop".
Virginia Fraternal Order of Police President Kevin Carroll said the message is threatening to officers and contributes to an already growing anti-police trend.
"We already have enough trouble as it is recruiting good recruits and retaining people," said Carroll. "This just makes it harder."
Steve Benjamin, a legal analyst for NBC12, said despite the concerns of officers, the sticker is completely legal.
"As obnoxious and stupid and potentially dangerous as that might be, that's the expression of a message, and that's protected by the First Amendment," he said.
While the message might be legal, the BMW driver could soon find out that it is more trouble than it is worth.
The shooter freely entered the building of the university and opened fire at those who were present on the ground floor