I suffered from moderate verbal abuse for one year in my place of residence. I lived in constant fear. When the abuse and rages I was subjected to became more intense and more frequent I escaped with the aid of my son, and after a period of homelessness, I found a good living situation. Now I am coming back to life, and I would like to discuss this experience and learn how it could have been prevented and how I can prevent something similar from happening again.
Were you living alone, with family, in someone else's home?
Who abused you? What were the issues? Did the person(s) have specific mental illnesses? Documented history of abuse toward others?
What were the surrounding circumstances of how you were living there, how the person(s) abused you, and other issues?
Did you call the police when you were abused? If not, why not?
More information will help others offer suggestions and analyze the situation, how it occurred, and how to avoid it again.
For those of us still in the position of caring for an elder, I think your experience "from the other side of the fence" would be helpful for us to understand more about the dynamics of how abuse develops and how both parties can avoid it.
If he has alternate week custody, I assume there's been a divorce. Advise the Friend of the Court for the county he used to and now lives in. If you're not sure, call the police and ask them to find out for you.
A hearing can be scheduled to review the custody agreement before he injures the child. In the meantime an injunction can be issued to prevent the child from having to visit with him.
And inform his ex-wife about the situation. She has a right to know her son is being abused, whether it's mentally or physically. His rage will cause emotional and possibly behavioral problems for the child.
Call tomorrow.
His behavior is not new, I am thinking, and may be a reason he was divorced, I am guessing here. It could be drugs, or a personality disorder, or anything dangerous!
He may have a history of controlling and manipulating you to get his way. He is using you now. It may be that the ex-wife approved his moving so that custody visits would be unspoken "supervised" visits. Talk to ex-wife. Or just turn in the creep for his very bad behavior.
Otherwise, you are complicit in his crimes.
....
You are THE GRANDMA, right?
This has happened before, right?
Only you know your history with your son. Your description of him as a monster sounds like the truth. Why are you protecting him, with delays, when the natural response to this kind of fear is flight. This is the time to take action, not talk about it for another two weeks.