An off-duty Chicago police officer dressed up as a clown for a South Side fundraiser shot and killed a teen who held him at gunpoint tonight after the event, authorities said.

The officer…was in his clown outfit for a fundraiser for a day-care business. The event, attended by a group of 50 children, was near West 87th Street and South Damen Avenue.

At 10:10 p.m. after the event ended, the officer went to his car and a teen approached him, asking him for money, authorities said. When the officer said he had no money, the teen pulled a gun on him, authorities said.

During a struggle with the teen, the officer grabbed hold of the gun, opened fire and killed him.

The officer sustained minor injuries, according to a release from police News Affairs.

Don’t carry a gun unless you’re prepared to use it. Don’t pull a gun on someone unless you’re capable of using it. Don’t get close enough to let someone take your gun away – and use it on you.

In this case – I’d say instant justice was meted out.