Being a police or any of the armed forces does not make you a good man/citizen for life. When you live in a system that is corrupt and unjust, expect that people will be incentivized to do bad/evil acts, one way or another. It's really unfortunate that such large amount of bitcoin was robbed.
A true bitcoiner should be able to put security first before even the his/her bitcoin. What is bitcoin without security? And security involves not putting large sums of bitcoin into one "basket."
The saying, "don't trust, verify", is actually awesome because even your own blood brother can snitch you when time is favorable. I suspect those guys were snitched.