Former President Joe Biden and President Donald Trump issued sharply different statements following the deaths of filmmaker Rob Reiner and wife Michele Singer Reiner, whose son, Nick Reiner, has been arrested and “booked for murder,” the Associated Press reported.

Robert Reiner, the celebrated actor, director and producer, was found dead with his wife Michele at their home in Los Angeles on Sunday, a spokesperson for the Reiner family said.

“Regardless of how you felt about Rob Reiner, this is inappropriate and disrespectful discourse about a man who was just brutally murdered,” Representative Thomas Massie, Republican of Kentucky, wrote...