Start with a simple google search. Then check his name against any social media sites such as facebook or linkedin where he would potentially list...

We have a small S Corp in California and an employee driving his own car hit another car while running an errand for our company

I would contact your insurance company and let them do some of the preliminary investigative work. Then once you have a better handle on the...

My son was hit by a car while crossing the street on his bike.

First off, I am sorry to hear about your son's accident. As others have said the police report is merely an opinion and not admissible. I would...

My friend drove my car and crashed it, who pays?

As long as your friend isn't an excluded driver, she should be covered by your insurance.

Are there grounds for a lawsuit?

I agree with the previous posts given the lack of damages a civll suit is not a cost effective solution. Your best bet is to contact authorities...