8.0/103 votes#1 - Cop Killer
Season 3 Episode 13 - Aired 1/17/2005
During a routine traffic stop, a police officer is murdered and now Horatio and the team must track down the killer. The only witness to the murder is a civilian who was doing a ride-along with the officer, but who is now missing. Roadside evidence leads the CSIs to Missy Marshall, a teenage girl who was with the killer at the time of the murder. However, as the team searches for the civilian and the killer, they find that Missy may have been more involved with killer and the shooting than she is admitting. Meanwhile, Horatio and Rebecca's relationship is in jeopardy when they don't see eye to eye on a case.
Director: Jonathan Glassner
Writer: Krystal Houghton Ziv
7.6/105 votes#2 - This Is Not a Test
Season 2 Episode 1 - Aired 10/15/2019
Four interconnected characters navigate the aftermath of the Purge over the ensuing year.
Director: Tim Andrew
Writer: Krystal Houghton Ziv
7.3/106 votes#3 - 7:01am
Season 2 Episode 10 - Aired 12/17/2019
As Purge Night rages on, Esme, Ryan, Marcus and Ben fight for their lives and their loved ones.
Director: Tim Andrew
Writer: Krystal Houghton Ziv
7.3/107 votes#4 - Snake Pit
Season 1 Episode 3 - Aired 1/30/2019
Marcus navigates a prank war between the Rats and Legacies, as everyone prepares for the big dance.
Director: Adam Kane
Writer: Krystal Houghton Ziv
6.6/109 votes#5 - Release the Beast
Season 1 Episode 4 - Aired 9/25/2018
Jane must leave the office while Lila consoles Jenna. Penelope is thrust into the Carnival of Flesh.
Director: Clark Johnson
Writer: Krystal Houghton Ziv
6.0/103 votes#6 - After Party
Season 1 Episode 6 - Aired 3/2/2023
The party turns deadly, causing the police to arrive. Ramsey and Garrett encounter something strange in the woods. The pack visits a former firefighter, Malcolm, to get answers about the wildfire.
Director: Katie Eastridge
Writer: Krystal Houghton Ziv
4.0/104 votes#7 - Origin Point
Season 1 Episode 3 - Aired 2/9/2023
Taken into questioning by Ramsey and her team, Everett, Blake, Luna, and Harlan construct an alibi. Luna and Harlan make a startling discovery when they defend Everett from their first terrifying sighting of the creature.
Director: Joseph P. Genier
Writer: Krystal Houghton Ziv
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Krystal Houghton Ziv Ratings Summary
"Cop Killer" is the best rated episode written by Krystal Houghton Ziv. It scored 8/10 based on 3 votes. It was directed by Jonathan Glassner. It aired on 1/17/2005 and is rated 0.4 points higher than their second-best episode, "This Is Not a Test".