Dover, Tenn.–If you have questions about what is fentanyl or why it has street names like “Serial Killer” or “TNT” or where’s it coming from, why is it such a killer, how big a problem is it in the county or what’s the Stewart County Sheriff’s Office doing about it? All these questions plus many more will be answered March 3 at 5:00 pm at the Annex Conference Room, Stewart County Prevention Coalition. Deputy Robbie MacDonald will be presenting the program.