I believe that SM and TM had the night all planned out and Longbeards was the place it was originally going to happen once HE was lured there. Something messed up the plan. HE was waiting at Longbeards and SM did not show up. Maybe he got spooked, or cold feet, or a conscience, as unlikely as...
Paula had a long history of mental illness. Frances was a wonderful, hard working woman who loved her daughter regardless of her issues. I do not believe that Frances was ever afraid that her daughter would hurt her. It is a sad, tragic story.
A human leg was found near a Charleston, SC marina. Not much information about it. It is being sent for DNA testing.
http://www.postandcourier.com/article/20150615/PC16/150619586/1177/human-leg-found-in-water-at-dolphin-cove-marina-sent-for-dna-testing