When did Castle Season 4 Episode 19 air?
Castle Season 4 Episode 19 aired on March 26, 2012.


A whole new chapter in crime solving.
After a serial killer imitates the plots of his novels, successful mystery novelist Richard "Rick" Castle receives permission from the Mayor of New York City to tag along with an NYPD homicide investigation team for research purposes.

When a bomb explodes at a protest rally killing five people, Castle and Beckett realize the key to solving the case is to reconstruct the 47 seconds prior to the explosion. Using video and witness accounts, they uncover the shocking truth about who planted the bomb.
Direct answers for episode-level questions and details.
Castle Season 4 Episode 19 aired on March 26, 2012.
This episode runs for approximately 44 minutes.
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