TV Show Info: http://www.imdb.com/title/tt1219024/

Show Summary: A comedic crime drama series. When mystery-thriller writer Richard
Castle is called in to help investigate a series of copycat murders based on his
books, he finds he enjoys the experience sufficiently to want to continue it. Pulling
strings, he arranges to accompany NYPD Detective Kate Beckett, claiming he wants
to study and use her as a personality basis for his next book series. But their
personalities don't mesh -- Castle's fly-by-the-seat-of-his-pants detective style greatly
clashes with Beckett's more conservative and methodical approach to the crimes, but
the new life that Castle has begun couldn't have been scripted better by himself.

Castle.2009.S03E24.HDTV.XviD-LOL

Episode Title: Knockout

Original Airdate: May 16th, 2011

A professional hit man with information about the murder of Beckett's mother
escapes...