BIL was served court papers as he owes 30k on maintenance. My DH and myself keep in touch with his ex wife and kids. Nobody from DH side keeps in touch and have actively discouraged BIL from paying maintenance. Anyway SIL had an idea where ex was now living but not exactly. I don't exactly know either but gave her the information I knew. Detective found BIL and served him and now my DH has hit the roof. He said if his brother or family find out there will be murder. That I'm toxic and a shit stirrer and should mind my own business.