New details are emerging about life behind bars for Nick Reiner, and they paint a pretty intense picture. Related: Nick Reiner’s Siblings Agreed To Pay His Legal Bills?! The source claimed:“He was recalcitrant, extremely hostile, creating a verbal disturbance, refusing to follow rules and not listening to any commands. According to that source, Reiner’s frustration quickly escalated as the wait dragged on. Yeah…Of course, as we’ve been reporting, Reiner was arrested after the late 2025 stabbing deaths of his parents, filmmaker Rob Reiner and producer-photographer Michele Singer Reiner.