Burn Rate
Season 3, Episode 20
Third Season box art

Air date 6 April 2007
Episode guide
Pandora's Box
The Art of Reckoning

As letter bombs begin targeting people connected with a previous serial bomber investigation, Don and Charlie must sift through a number of false leads to find the real killer.


  • In an arson investigation or similar, the relative speeds at which different materials are consumed by the flames, necessary to judge point of origin, fuels involved and the timeline.

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