The author built a Remotely Operated Vehicle (ROV) to help solve missing person cases, inspired by a story about a man who solved a case in Death Valley. The author and their brother used the ROV to find two missing persons' cars underwater, which had been unsolved for 9 and 15 years. The story is told in a series of blog posts, which include technical details and photos of the ROV. The author's project was a personal endeavor, driven by a desire to make a difference in missing person cases.