[s4e8] - Heartbreak Hotel

: The victim, Sam Siegel (a nod to real-life mobster "Bugsy" Siegel), was being blackmailed after $10 million was stolen from his casino.

: Richard Castle (Nathan Fillion) famously appears in an Elvis impersonator costume, complete with an elaborate hairstyle. Easter Eggs : [S4E8] Heartbreak Hotel

: When Sam Siegel, the co-owner of an Atlantic City casino, is found murdered in an abandoned warehouse in New York, the team must split their investigation between the two cities. : The victim, Sam Siegel (a nod to

Castle's home address is listed as in casino records, a reference to Green Lantern co-creator John Broome (Fillion has voiced Hal Jordan in animated films). Castle's home address is listed as in casino

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