After a tense party interaction, sources say Bill Hader is shaken and eager to avoid public ties to the Nick Reiner criminal case.

Rob and his son got into a heated argument during the party, with one guest alleging that Rob told his son that his behavior was inappropriate. Another guest told The New York Times that Nick seemed anxious and uncomfortable throughout the night, “in a way that deeply unsettled them.”

The young Reiner reportedly peppered Bill Hader and others with annoying queries at the A-list bash before he allegedly killed Rob and Michele Reiner.

Rob Reiner's son, Nick, 32, has been charged with the murder of his parents, who were tragically found stabbed to death at their home in Los Angeles on Sunday