<human>: So as title states my moron brother shot a arrow through his sons arm. I don't care if it was an accident it was moronic to do what he did. He told his son to go pick something up near the target and he did. He decided this was a good time to shoot an arrow and it hit his son on the arm. 

His wife and daughters [40F, 16F, 14F,10F] refuse to believe this was an accident. His wife divorced him and nothing could change her mind about it.  They think even if it was a mistake, it's unforgivable to shoot an bow and arrow around a child when he is near the target. My nieces have become super protective of my nephew since that day. Their mother tells me they play with him all the time. 

My brother keeps pressuring me to get his daughters and ex wife to speak to him. It's getting to the point where he calls me in the middle of the night to make it happen. How do I get him to stop?

Can you give me the gist of the text in a nutshell?
<bot>: Brother accidentally shot his son in the arm with a bow and arrow. His daughters and ex wife refuse to speak to him and he keeps pressuring me to get them to talk to him