according to reports, attorney general jeff sessions did not attend. >>> alabama officials say they suspect arson in the fire that destroyed the home of tina johnson who accused roy moore of sexual misconduct. police say they do not believe the fire was connected to the accusations she made against moore. now back to "dateline." >>> welcome back. i'm craig melvin. >> charlie tan told police he shot his father to save s mother. but investigators were finding flaws in that story. the ivy league student had been arrested and was facing second-degree murder charges. was this an intentional killing or justifiable homicide? here again is dennis murphy with "house of secrets." >> anna valentine was in a state of disbelief when she learned that her close friend charlie tan had been arrested. >> did you have a chance to talk to charlie himself in that period? >> he called me on the phone a couple times from jail. >> anna didn't sit around.