21. Ain't Nothing Like the Real Thing

Complete story — includes the ending

During an apparent carjacking gone wrong, both the driver and the carjacker are shot dead. However, many details do not fit that story; for example, the alleged carjacker was left-handed, but the gun ended up next to his right hand. It turns out that the carjacker was actually a hitman hired by the driver's partner in a struggling business. The partner was being pressured by the target to sell some seemingly worthless property. The partner, however, knew that it held rare "old-growth ginseng " worth tens of millions. The driver and the hitman decided instead to stage a phony murder to blackmail the partner. The driver's wife confronted him during the staged scene and killed both men, having found out that her husband was planning to abandon her and start a new life in Tahiti. When she shot her husband, the recoil knocked her hand back against the car door, dislodging the diamond from her ring. The diamond remained undetected amid the shattered window glass, until Sherlock figured out what happened. Meanwhile, multiple people die during an armed robbery in a diner, one of them is Emil Kurtz, Joan's mole in Morland's organization.