Formmail - Redirect based on radio button

Hi all-- this seems like a fairly simple request but I’ve tried a bunch of different things…I am familiar with html but very unfamiliar with java, so that has been my downfall. Here is my basic page:

I have a formmail set up which is working great. I have 2 radio buttons, email box, and text question box, which leads to a thank you page upon submission.

The forms work great and all the info gets submitted to the same place. What I would like to do is have a different page ( set up as the redirect page if the option “bad people” is selected. The “good people” option should still go to the thanks.htm page.

Any suggestions? Thanks in advance!