history: 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. Someone keyed my new car yesterday at work. Oh no! Did you find out who?
current: 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.
next: You should look for camera in the area, they could help you catch the perp.