What steps should I take to get my money back from the office manager?

This person that worked for me was the office manager form my business in Orlando, but he quit on Monday. He was responsible for making daily deposits and after checking my account, found out that I was missing $3103 in sales that was never deposited. I confronted him last week and he did not have much to say, only said to take it out of his paycheck, but the only problem is that he quit on Monday of this week. I have proof that the secretary filled out 4 deposit slips for each deposit, but was never deposited. Out of the $3103 there were two checks totaling $125 and the rest was cash. What steps should I take to get my money back?