Nick Reiner, son of filmmaker Rob Reiner and Michele Singer Reiner, is being held on $4 million bond, after police say he fatally stabbed his parents. #foxnews #us #crime #news #fox #media #breakingnews #us #usa #new #news #breaking #foxnews #robreiner #michelesingerreiner #nickreiner #hollywood #california #crime #crimenews #crimestory #criminal #police #stabbing #homicide #family #investigation #celebrity Subscribe to Fox News: https://bit.ly/2vBUvAS Watch more Fox News Video: http://video.