Could neighbors have heard the gun shot(s)? [That would allow for plausible deniability]
Sab wrote: It's the mother's responsibility first, so how do I figure out if she's taking care of it or not?
Guns, drugs, extreme partying and alcoholism, in a multi-generational family doesn't make for a healthy environment for people. It's especially toxic for young children. It should be the mother's responsibility, but what if she is not taking it seriously either? It's not necessarily up to you to try to figure it out. If you have reason to believe that the children may be in jeopardy, call Child Services and let them figure out if she's taking appropriate action to keep her kids safe.
You are a very kind, and loving man. How will you feel if you something happens again and kids get hurt and you had *not* made a call/anonomous report when you had the opportunity?
And about your brother coming home with all the dramatic stories... Pretty soon your young son is going to start understanding the words. It's not sounding like things a toddler should hear about. It's nice that your brother and his friends know enough to keep the physical drama out of your house, but you may want to consider keeping the peripheral drama away, too.
I'm just speaking from experience. My 30's were filled to capacity with extreme drama of people close to me. You can't keep it all at bay. But you can make your house a haven for yourself, your wife and your son. They clearly respect you and you will have to carefully decide where the boundaries are. When you do, make it clear and stick to it.
-Aude.