![Titanic-Tourist Sub](https://assets1.cbsnewsstatic.com/hub/i/r/2023/06/22/1aee960a-68b6-4690-96df-49bd138eda6b/thumbnail/640x360/5eec8fc28cdc70caf18e125daa4f0022/ap23171805455479.jpg?v=57e8061b2038d609da26e467de5ddfb8#)
Search for missing Titanic submersible meets tragic end. One local expert still had hope.
Pieces of the sub were found at the bottom of the ocean about a quarter mile from the site of the Titanic. It was the worst-case scenario for a search that came with a deadline.