Sorry this is long but I feel like I need to get it out......
We found out last year our brother in law had been convicted of child sex offences in his home country. He abused a young girl when he was in his 20s. This was a long time ago before he met my sister in law. There seems to have been other charges against him which didn't make it to court. He is now in jail.
He was my children's only uncle (married to my husband's only sibling) and we used to see them regularly. They have a young son.
It turns out my parents in law knew about this from the first allegations being made against him (before he was married to my sister in law even). The PIL, I assume together their daughter and son in law, decided they wouldn't tell us after he was charged, bailed and the investigation was going on.
Allegations first came to light in 2018 and he was finally convicted in 2023 (due to the courts being backed up because of covid) so there was a very long period where PILs together with SIL and BIL kept this from us, whilst seeing us regularly (except for the lockdown periods) and PILs constantly lobbying for us to do more together and always including them if we were visiting. There were many nights where we all slept in the same house and MIL even lobbied for our eldest to share a room with our nephew rather than staying in the room with DH and I.
By the time DH and I were finally told about this in 2023 following the conviction FIL had died so we'll never get any answers from him. MIL and SIL have completely closed ranks and refused to tell us anything about how this all came about and why they knowingly exposed our young daughters to a suspected paedophile.
SIL has never bothered to speak to us at all since the conviction other than popping up once with a message to ask us to keep the secret from the wider family indefinitely (we refused). MIL has been aggressive towards us and accused us of not being supportive. She doesn't seem to understand that she has prioritised a paedophile over her grand daughters. She even suggested our girls were too young to be "his type" because the girl he abused was 10.
I feel like we have every right to be really angry. We're now having to explore our eldest what might he might have done to her. We've had to speak to her school and help her understand why her family have disappeared and we're not seeing them.
There doesn't seem to be any genuine remorse from MIL about this and she can't/won't provide any explanation as to why they did this. She has categorically refused to tell us anything further. She seems to think we're making a fuss about nothing.
DH and both share the view that unless there's a complete change of approach from her then there's no prospect of any reconciliation. She ignores us when we say this but then pops us every so often with a message to DH saying she misses the girls, or wonders what would happen if FIL was still here, or how could we be so cruel in shutting her out, she's now all alone etc.
I feel like I'm going mad sometimes. Is she right? Are we overreacting? I've known my in laws for 20 years and actually got on with them during that time - I can't believe all of this was going on just beneath the surface and we never knew anything about it.