( June 4, 2026, 1:36 PM EDT) -- NEW YORK — A district court did not abuse its discretion in excluding testimony from experts retained by a police officer who accidentally shot himself while removing a handgun from its holster, but the court erred in granting summary judgment for the gun manufacturer because “New York law does not require expert testimony to establish proximate causation in all circumstances,” the Second Circuit U.S. Court of Appeals held....