Everything We Know So Far About Callen's Past

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Hetty stepped in the save Callen when he was a teen.

Hetty knew much more about Callen's past than he did when the two met oh-so-long ago. Callen had just spent three weeks in juvenile detention before escaping, robbing a storage locker, stealing a car, and then crashing it. That's when Hetty decided to get involved.