My Co-worker was fired last week!

United States
April 2, 2011 2:18pm CST
I only work on Saturdays from 8a-8pm on my 2nd job. When I came in today I found out that the Maintenance man who works with me was fired this past week. I am so upset. We worked very closely and got along well. I work the front desk of a retirement community and I am constantly in contact with Maintenance. Everyone keeps asking about him and I feel so bad. Did this ever happen where you work? What do you say to the person besides I am sorry?