A taxi driver showed up for Holmes while he was at his apartment with Gregson, Lestrade, and Watson. He was asked to come over to his apartment by Holmes. The man was then taken into custody by Holmes, who identified him as Jefferson Hope. Drebber and Stangerson were killed by him.
When Jefferson got back to Salt Lake City, he found out that Drebber had married Lucy and that John had been shot and killed by Stangerson. Lucy was devastated and passed away quickly—in a month. She did not go unnoticed by Drebber. He had married her primarily for financial gain from her father. Jefferson took Lucy's dead finger's wedding ring. He pledged to exact vengeance on John and Lucy.
Jefferson followed Drebber and Stangerson for twenty years. In order to exact his vengeance, he wanted to find each man alone. He was aware that they could defend one another if they were together. However, he could kill them all on his own and thereby exact revenge for Lucy and John's deaths.
The narrative is then carried on from Dr. Watson's journal. Jefferson explained how he had retaliated against John and Lucy Ferrier's deaths there. Jefferson would before long kick the bucket from an aneurysm, however he was content and tranquil on the grounds that he had gotten equity for Lucy and John Ferrier by killing Stangerson and Drebber.