The Reiner family hit a rough patch with Nick just last month, according to those in the know. As Perezcious readers know, Rob and Michele were heartbreakingly murdered on Sunday, allegedly by their son Nick, who has struggled with addiction and mental health issues since he was a teenager. They were at Conan O'Brien's Christmas party the night before, where the father and son were overheard getting into a "very loud argument." Related: How Rob Reiner Was Instrumental In Gay Marriage Legalization But now, DailyMail.