In all honesty, it's opportunistic to use a tragedy as a gateway to drug use and bad behavior.
Emotions are to be controlled, and less to be acted upon.
There are people that don't know that, though, and they are usually the ones you see taking tragedy that direction.
i know it's hard and I'm not being callous, but I am saying that you can better control yourself and in the process be an example for others looking inward at you during your time of grieving.