The DEA’s snitch had gotten out of Cartel favor by losing a load —it appeared he might lose info access. But if their snitch were able to steal a rival incoming load, then he’d be straight again with the Cartelistas.
So the DEA and Fibbers spilled the beans on the impending load, and at the rip Terry was killed.
If instead of a US cop dying, say, 20 poor Mexicans or mere US citizens were killed do you REALLY think we’ ever had heard anyof this...?