I hate being in this situation :(
Excuse my ignorance but what's a FIL?
You need to keep your daughter away for him and think about the possability that he may also have asulted you'r husband and if he did and you'r husband was raised thinking it is acceptable ( witch he oviously thinks its aceptable to a degree coz he sided with hid dad not hjs sis ) then he is likely to do this to your daughter.
@ribaby15 yes his own daughter. That is why he is a registered sex offender now and he's still on probation. I would never leave my daughter with my FIL I just don't know how to act around him. Ever since I found out I've been debating whether I should never see him again but I don't want to hurt my husband. I have seen him once after I discovered the truth about him and honestly I can't help but feel disgusted and extremely uncomfortable. I'm very angry he didn't fess up himself. I can't believe if I never "Google stalked" him I wouldn't have ever found out!!
Keep you daughter away and do whatever u can to keep other kids away as well ... Don't feel bad at all ... You're husband should be understanding and actually want to.do the same for your daughter and if he's not then forget him too ... Its not worth it to take the risk of something happning to your daughter ... If u **** people off too bad at least your daughter will be safe