Major Crimes2012

Lt. Reed:
Here's what we know. A vehicle exploded at 11:34 hours. The blast pattern indicates an inciting reaction with extremely high deflagration. [Provenza shows puzzled look]

Mike Tao:
He means it was definitely a bomb.

Lt. Reed:
And in mapping the geography of the debris field back to the blast point, the device was likely anterior to the fuel tank, piggybacked on to the solenoid.

Mike Tao:
The bomb had a trigger.

Louie Provenza:
Well, where is the trigger?

Lt. Reed:
We haven't been able to fully access the evidence.

Mike Tao:
They haven't found the trigger.