>> dr. michael baden has reviewed the evidence and has determined that this could not have been an accidental fall. >> in december of 2008 detectives paid one more visit to stephen scharf. >> they wouldn't tell me what it was for. i had no idea what this was about. i mean, it didn't make sense. >> 16 years after that fatal night on the cliff police were back and stephen scharf was in for a shock. >> after all these years you thought it was done. >> not until they reached behind and hand me this thing, this arrest warrant. >> coming up -- the case heads into court with a surprise from the stand. >> i'm here for my mother. >> stephen and jody scharf's only son has some dark secrets to share. >> did you see that abuse? >> i did. >> when "over the edge" continues. ver the edge" continues.