Murder in the Magic City Mystery Convention

So. The Magnificent Margaret Fenton , Mistress of the Marvelous Murder in the Magic City Mystery Convention emailed me my panel assignment today. I'll be moderating "Murder: In Four Courses, with Cocktails." Much to my merriment, the other panel members are Kathleen Delaney, Don Bruns and Mike Orenduff. As most of you know, this is my first panel ever. Soooooo, it's obviously my first moderating gig. I'm soliciting hints, tips, suggestions and possible questions from all you smart folks.