Nick Reiner was declining before parents murder after dad Rob boasted he had been clean for 6 years

Rob Reiner’s rotten apple son Nick was “declining” before he allegedly hacked dad Rob and mom Michele to death, according to a report — as his iconic filmmaker father revealed earlier this year that Nick had been clean for the past six years.The suspected killer, who has been public about his past drug abuse, never gave an indication he was violent even if he had a history of being “self-destructive in many ways,” a source close to the family told People.“If they thought he was violent, things would have been very different,” the source reportedly claimed.“At the worst of it, it hadn’t been like this.I don’t think anyone could have ever seen anything like this coming.

Nick was declining lately but he had been really bad before.”Nick, 32, was hit with first-degree murder charges by Los Angeles prosecutors Tuesday after he allegedly stabbed “The Princess Bride” director, 78, and Michele Singer Reiner, 70, to death early Sunday morning.The source also told People the couple “felt enormous guilt for so long that they couldn’t help Nick get his life together.”Rob Reiner, who directed a series of acclaimed films in the 1980s and 1990s, hadn’t been shy about his son’s battle with drug addiction and the pair’s complicated relationship.He told NPR in a September interview that Nick was “in a really good place.”“He’s been great … hasn’t been doing drugs for over six years,” said Reiner, who has New York roots growing up in the Westchester County’s New Rochelle.He also talked about his relationship with his middle child while acknowledging making mistakes as he tried to help him.“I was never, ever too busy,” Reiner told NPR.“I mean, if anything, I was the other way, you know, I was more hands-on and trying to do whatever I thought I could do to help.I’m sure I made mistakes and, you know, I’ve talked about that with him since.”The two worked on a movie, “Being Charlie” which is about an 18-year-old addic...