Watch S4, EP4: X Marks the Murder with Fubo for $0 Today
After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
After a clever serial killer is murdered in jail, Mark and Steve realize an equally lethal copycat is on the loose.
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More episodes
Diagnosis Murder
S3, EP4 "Murder in the Courthouse"Dr. Sloan's jury duty ends on a unique note when the defendant in the case is suddenly murdered after the verdict is read.
Diagnosis Murder
S3, EP7 "Love Is Murder"Dr. Sloan believes two police officers were victims of a serial killer and has no time to lose when Steve becomes the killer's next target.
Diagnosis Murder
S4, EP8 "Murder by the Busload"Dr. Sloan and the others discover that a bus accident victim was actually murdered and that several of the passengers had motives to kill him.
Diagnosis Murder
S4, EP9 "A Candidate for Murder"Dr. Sloan suspects a political cover-up when the drug-addicted daughter of a prominent politician dies of an overdose.
Diagnosis Murder
S4, EP7 "An Explosive Murder"After Mark is nearly killed by a bomb, Steve's protégé goes undercover to learn the terrorists' next target.
Diagnosis Murder
S4, EP6 "Murder Can Be Murder"Mark discovers a case of insurance fraud in the hospital when a hasty cremation follows the misidentification of a corpse.
Diagnosis Murder
S4, EP5 "A Model Murder"Mark and Steve enter the glamorous world of modeling to track down an unlikely killer after the murder of a private investigator.
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.
