Back to Mr. and Mrs. X.
Throughout the day we'd be receiving bits and pieces of information about what was happening. Turns out this elderly couple had spent all of their savings to bring their entire family (like 20+ people) on this cruise, and then after telling said family that they were going back to their room and asking not to be disturbed, instead packed all their stuff, walked up to the top deck, removed their shoes, and jumped over the side.