If you believe NCIS: New Orleans Season 1 Episode 7, then the Axelrod Industries guys really need a primer in How to Succeed in Cover-Up Without Really Trying.
Let's examine the chain of incompetency that lead to the bad guys' arrests at the end of the episode. The missile test went horribly wrong - turns out there was a defective component.
Instead of fixing the problem, they decided to cover up the mess, but the executive accidently hit the "reply all" button on her cover-up memo (don't you hate it when that happens?). When their Navy liaison saw the memo, they decided that the obvious solution was to kill him. The Axelrod security chief succeeded in murdering Shang Lee, the commander's assistant, and the commander, but couldn't find the SD card with the evidence.