Diagnosis: Murder
S04E05 X Marks the Murder (2)
Title: X Marks the Murder (2) Plot: Mark, Steve, and their team delve into a series of enigmatic killings dubbed the "Casanova" murders. As the investigation unfolds, Dr. Sloan struggles to maintain his usual objectivity when the murderer starts reaching out directly to Mark.
Season 4 Episodes
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2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
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26
Murder by Friendly Fire
Murder Can Be Contagious
Murder on Thin Ice
X Marks the Murder (1)
X Marks the Murder (2)
A Model Murder
Murder Can Be Murder
An Explosive Murder
Murder by the Busload
A Candidate for Murder
The ABC's of Murder
Murder in the Family
In Defense of Murder
A History of Murder
Murder Two (1)
Murder Two (2)
Hard-Boiled Murder
Murder, Country Style
Delusions of Murder
A Passion for Murder
Blood Brothers Murder
Physician, Murder Thyself
Murder in the Air
The Merry Widow Murder
Comedy is Murder
The Murder of Mark Sloan