Elementary
A Burden of Blood
S4 E8:
Holmes and Watson investigate a homicide in which the victim was murdered in a manner reminiscent of the crimes of an infamous, and already incarcerated, serial killer. Also, Sherlock and Joan tutor Detective Bell for a police sergeant's exam that would lead to a promotion and a post at another precinct.
Starring
Jordan Gelber, Seamus Mulcahy, Noah Bean