When you watch Elementary Season 4 Episode 7 online, some workers are horrified to discover that a person has been fed into their woodchipper. The victim is identified as Bob Underhill, a retired FBI agent. The team learns that he was restless in his retirement and had been looking into his old cases. Sherlock finds a connection to case files that Underhill didn't have but had apparently requested, an incident involving the kidnapping of a 10-year-old girl named Mina Davenport, who managed to escape her captor ten years later. On the hunt for clues, they visit the Davenports, and Sherlock makes an intriguing realization: Mina Davenport is an impostor. Was this what led Bob Underhill to a fateful encounter with a woodchipper? And if this girl is an impostor, what happened to the real Mina Davenport? Meanwhile, Joan is appalled to discover that her father has written a fictionalized take on her partnership with Sherlock, complete with their fictional counterparts getting into kung fu fights with criminals and sleeping together. Joan does not take it well and thinks that Sherlock would take it even worse were he to know. Find out what happens when you watch Elementary Season 4 Episode 7 online!