I have been busy tracking down contacts at AVO, CMI, and Wal-Mart. 

I have determined that the company that likely hired AVO was CMI inc. They go by a few different names in different states. They are the primary claims management company Wal-Mart uses for work place injuries. 

This is what I have found, but not able to confirm. If you are aware or wish to anonymously contact me with information that may help please do so.