Jimbo, I expect a big slider or painter has moved in. I haven't seen a real snapper around here in years. Now that this has happened, I recall having a catfish on a stringer that I lost. I had pushed the point of the stringer down into the mud and assumed the fish had pulled it out and got away only to die. Never lost one before and it puzzled me but then, I had never had a large enough turtle to pull it out either. I'm only assuming about the size since I haven't seen any real big ones and still haven't.