Article continues below advertisementBilly Bush is speculating who may be bankrolling Rob Reiner's son's defense attorney after he allegedly murdered his parents. "Everybody's asked me because I know Alan Jackson, you know, how has Alan Jackson come to be the defense attorney for Nick Reiner?" he began in the video posted to his podcast's Instagram account on Wednesday, December 17.Nick, a troubled drug addict, has been charged with murdering his famous Hollywood director father and his mom, Michele, after they were found dead with knife wounds at their Brentwood, Calif.