By Andrew McCarty Three months ago, Mike Williams, a former NFL wide receiver for the Buffalo Bills and Tampa Bay Buccaneers, passed away at the age of 36. His death just a few days after he was removed from life support following a workplace accident in August. Williams sustained injuries after heavy supplies landed on his head while working on a construction site. The former NFL wide receiver seemed to be improving in the intensive care unit before he suddenly passed away. Now, three months after his passing, officials have determined a cause of death. Williams suffered a bacterial infection…