Saw my cousin's husband abuse their 7 year old tonight. Tried to intervene twice, dp tried too, but escalated to him throwing 7 year old against a wall. Happened a ways off from the main group of the family party were at, dp and I only ones who saw directly what happened. I got my cousin but she became v upset and defensive with me. Told aunt who was upset at first but is now minimising. Dp and I are being told we got it wrong, wasnt what it looked like, we're being alarmist etc.
Not the first time I have seen him be rough and I have raised it with my cousin before, but this is worse. My poor nephew. He is ok tonight, cousin's husband went straight into repentant guilt mode, but there will be a next time. How do I help my nephew and my cousin without joining in the family whitewash? Dp and I both hate conflict but we can't pretend tonight didn't happen. Should I report? It will end our relationship as they will know it was me, will cousin and nephew get the best help that way, or should do and I try to help them first?