Say there is someone who worked his job for 4+ years without a problem. More recently, the owner of the small company of about 12 employees had been making negative comments about this person's political activism, specifically, his involvement with public protests.
This week, the patriot was fired under false pretenses (although this job was as an at-will employee). He is apparently being accused of theft from the business, and a police investigation is underway relating to that.
The patriot has NOT stolen anything, and has even at times turned in to his boss, other employees' bags of misplaced money when found.
He has talked to the officer and agreed to take a "stress test."

So, what do you guys and girls think about this situation, and what advice would you offer? Should he get a lawyer or wait until/unless charges are filed?

Please help. We can't have our American patriots snowballed by corrupt employers/police/whoever else for being politically active.