Shaken Bill Hader was spotted anxiously pacing outside his Los Angeles home on what appeared to be a tense phone call after news broke of a squabble he had with Nick Reiner the night before Rob and Michele Reiner’s brutal murder. The pair reportedly got into a tense tiff at Conan O’Brien’s holiday party on Saturday night, less than 24 hours before the legendary filmmaker and his wife were found with their throats slit at their Brentwood home.