I have a nephew on my wife's side of the family who appears to have some mental health problems. The dilemma for me is that my four year old daughter is being bullied by her seven year old cousin. He is endangering my daughter and no one seems to be paying attention to the red flags. I am the only one seeing and hearing warning signs during their interactions. He has learning/speech problems that have finally been addressed the last year or so, and he is getting special help for that academically. I don't know what kind of problem he has, whether the behavior is coming from some sort of abuse, or if it is a mental condition he was born with.
What is the best way to handle this situation? I correct the behavior when it affects my daughter and I never let her be alone with him in a room or outside without me watching. But most of this is happening under everyone else's noses. I cannot trust any of my wife's family to watch them. They are either not paying attention, or ignoring it and hoping it goes away. I have to keep an eye on them every minute during a get together, because no one else can be relied on. No one talks about it, and my wife didn't believe me until I started telling her specific words and actions that have happened.
Any advice would be greatly appreciated.