So at my wits end and could use advice (and to vent). Long story short: dad was a rageaholic my entire life. He could go for days and even weeks on end storming around and being nasty to everyone. I had a fairly miserable childhood always being on edge wondering what mood he would be in. I hid in my bedroom most of the time to avoid him. So did my brother. 

Mom was a very loving mom. She did her best. But I wish she would have divorced my dad when I was a kid. 

Now they are retired and in their early 70's. My dad still rages and my mom is an alcoholic. They are absolutely toxic together and they spread the joy. I know the police have been to their home at least 5 times in the past couple of years. They have BOTH been arrested for domestic violence. My dad loves to call family and blame them for all of his problems. His brother and sister will not even speak to him and haven't for years. He has burned every bridge. They are not invited to family functions anymore. 

Now we barely see my parents. I've been in their home once in the past year and they only live 20 minutes away. Anytime things almost get better my parents have some sort of meltdown and alienate everyone again. I have forgiven my dad so many times after he has apologized but I'm done. He doesn't change. I usually invite them to my house before most holidays. I stopped inviting them on actual holidays because they ruin them. Recently I stopped doing even that. 

My mom is depressed and lonely. She misses her grandkids. She is pretty much trapped with my dad. Her drinking does not help and infuriates my dad. I don't go to their house anymore because I'm afraid. They have many many guns. He has hinted at murder suicide before. I do not put it past him. I don't put it past her either. Why the police won't remove his guns I have no idea. When she is mad at my dad he is the worst person ever and she is a victim. When she isn't mad at him then he is misunderstood and we are not fair to him. I invite her to lunch and she uses the ocassion to cheerlead for him. Both my brother and I have offered to help her move. She says she can't or doesn't want to. They are extremely co-dependent. 

I'm tired of the drama and of them. At their age they should be enjoying their family,  especially their grandkids. But they are in misery. I can't imagine living the way they do. If I got a phone call tonight and was told one had killed the other and then killed themselves I would not be surprised. I believe they are going to die unhappy and regretful. I have no idea of what to do about it however. Anyone else in similar circumstances?