Business Partner is doing shady business

I am somewhat new to this forum and I live in Kissimee, FL. I was given a chance to assist someone in selling stencils online and to various companies.
I found out that he and I made a sale, but He is totally leaving me in the dark about everything that is being done with the sale. I purchased the website and he took over it. As of right now, I haven't heard from him or anything for the last couple days. He kept telling me via email that he and I would split everything, but hasn't delivered. What should I do? I have everything in writing.

Ask him to send all the information you have requested as soon as possible or you will have to consider your legal options regarding full disclosure. Hope this helps!