Article continues below advertisementRob Reiner and his wife, Michele Singer Reiner, may have been asleep when they were murdered in cold blood.The famous film director and his spouse were reportedly found dead in bed with their throats slit, a source close to the investigation told Daily Mail after Rob and Michele's son Nick was arrested in connection with his parents' deaths.The alleged location of the Reiners' deaths is a key detail in the horrific timeline of the couple's murders as police investigate the 32-year-old drug addict as a prime suspect.