Just found bosses name on offender registry. should I let him know I know?

I was looking around on registry for local offenders and I found my bosses name on there. I looked in it and it is for sure him. What should I do with this information? I like my job and my boss. Should I just keep quiet and pretend I don't know or what? He is not a child molester, as in little kids, just statutory and a long time ago. According to the file when I looked on case-net, her family even went to the court to ask for leniency.