['Someone keyed my new car yesterday at work.', 'Oh no! Did you find out who?', "No,  I don't know who that was and it is better for them it keeps that way, or I will make them pay for it and denounce them to the police."]
You should look for camera in the area, they could help you catch the perp.
Someone  keyed my new car yesterday at work.  I don't know who that was and it is better for them it keeps that way, or I will make them pay for it and denounce them to the police.