Article continues below advertisementRob Reiner's family is said to be deeply concerned that sensitive medical details could become public as Nick Reiner's murder investigation continues.According to a source, the Reiner family is "bracing for another devastating blow," fearing that "more deeply private medical information about Nick" may soon "leak into the public eye." While Nick has been accused of two counts of murder following the deaths of Rob and his wife, Michelle, those closest to the family remain focused on protecting him.