Castle -: Season 1 Episode 5

: During the current investigation, the team finds that Sam Cavanaugh was himself murdered a year prior. The killer was Ben Davidson (Melanie’s father), who eventually realized what Sam had done and took revenge. Cast & Crew

: Nathan Fillion (Richard Castle), Stana Katic (Kate Beckett), Susan Sullivan (Martha Rodgers), Jon Huertas (Javier Esposito), Seamus Dever (Kevin Ryan), and Tamala Jones (Lanie Parish). Castle - Season 1 Episode 5

: Workers find the frozen corpse of Melanie Cavanaugh tangled in steel bars at a construction site. While initially appearing to be a fresh murder, the team discovers she had been missing for five years and was likely kept in a industrial freezer the entire time. : During the current investigation, the team finds

If you'd like to explore this season further, I can provide: : Workers find the frozen corpse of Melanie

: It is revealed that Melanie's husband, Sam Cavanaugh , killed her and stored her body in a freezer to maintain the facade that she had simply left him and their daughters.