When did Bones Season 4 Episode 21 air?
Bones Season 4 Episode 21 aired on April 16, 2009.


Every body has secrets.
Dr. Temperance Brennan and her colleagues at the Jeffersonian's Medico-Legal Lab assist Special Agent Seeley Booth with murder investigations when the remains are so badly decomposed, burned or destroyed that the standard identification methods are useless.

When it is discovered that a stage prop used by a Norwegian death metal band is in fact a real human skeleton, the remains are sent to the Jeffersonian when authorities determine the victim was an American citizen.
Direct answers for episode-level questions and details.
Bones Season 4 Episode 21 aired on April 16, 2009.
This episode runs for approximately 44 minutes.
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