You've posted several variations of the same questions, so it would probably be best to use the search function to contact an employment lawyer. It appears you are searching for a way to go after the employer, employee or someone.
You might consider firing the employee and reporting the incident to the police.
My answers to questions posted on AVVO are intended to provide general information only, and are not intended to be legal advice. Employment law issues typically require a careful case-by-case analysis. Consequently, if you feel that you need legal advice, I would encourage you to consult in person with an employment attorney in your area.