I’ve read a lot about Mohamed Atta since (to be personal about it) hearing the impact of the first airliner hitting the World Trade Center, but never knew he married or had a child til I read this: https://www.theguardian.com/world/2018/aug/05/hamza-bin-laden-marries-daughter-of-911-hijacker-mohammed-atta
In fact, I remember the rumors that Atta was gay (not that that would’ve prevented him from having an outwardly conventional family life.)