
Watch S4, EP1: Murder by Friendly Fire with Fubo for $0 Today
Mark becomes suspicious of a veteran police officer who claims he killed his partner accidentally, when the dead man's widow sues the police department.
Mark becomes suspicious of a veteran police officer who claims he killed his partner accidentally, when the dead man's widow sues the police department.
How to watch
More episodes
Diagnosis Murder
S3, EP2 "Witness to Murder"Mark steps in to care for a 7-year-old abuse victim who was the lone witness to her father's murder and has been left mute from shock.
Diagnosis Murder
S3, EP3 "All-American Murder"A gorgeous woman who turned heads on the beach is found murdered, and Dr. Sloan's only key to the mystery is a blind man, who never saw the beauty.
Diagnosis Murder
S4, EP4 "X Marks the Murder"After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
Diagnosis Murder
S4, EP4 "X Marks the Murder"After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
Diagnosis Murder
S4, EP3 "Murder on Thin Ice"The main rival of a celebrated young figure skater becomes the chief suspect in an attack, and Mark is out to prove her innocence.
Diagnosis Murder
S4, EP2 "Murder Can Be Contagious"Steve and Amanda race to find a stolen antigen for a biological weapon that has infected Mark and Jesse.
Diagnosis Murder
S4, EP1 "Murder by Friendly Fire"Mark becomes suspicious of a veteran police officer who claims he killed his partner accidentally, when the dead man's widow sues the police department.