Article continues below advertisementRob Reiner's son Nick reportedly didn't seem himself in the weeks before he murdered his parents. According to an employee who worked at the Sinclair Gas station near the slain Hollywood director's Brentwood mansion, the troubled drug addict, 32, is said to have recently appeared "drained" and displayed "abnormal" behavior.Article continues below advertisementSource: @jakereiner/instagramNick Reiner was arrested the same day his parents' bodies were discovered by his sister.