[AndrewC]

Answer me this: if this was such a clean shoot, why did Compean and Ramos destroy evidence and lie about it to their supervisor?

Describe the evidence that Ramos destroyed. And list the lies to their supervisor. Back it up with testimony.

[curiosity]

Describe the evidence that Ramos destroyed.

The shell casings.

And list the lies to their supervisor.

For starters, failing to tell the supervisor about the shoot would constitute a lie of omission.