Issue with the <em> tag embedded in the page seems to be related to a specific author

After some investigation, I found that the issue with the <em> tags being embedded in the page itself (affecting the entire page) instead of the the body of the blog, seems to be connected to the specific author.

I have created a few test blogs which seem to work fine, but when I use a specific author (Marc Emmer), the entire page's formatting gets affected. When I change it to another Author, the entire page's formatting reverts to normal.

Here is the link again: http://www.scvbj.com/blog/coach

Does anyone have any insight into what's going on and how I can correct this?

I have attempted to clear any strange formatting issues with the Author content, including Apture, but I still do not have success. I have even created a new Author for this individual, but still encountered this problem.