Even non-close relative marriages have resulted in autistic kids.
From what I heard she recently moved from Pakistan. I heard her 911 call after she killed her children, it was shocking to hear, there was no remorse, no regret. She explained to 911 operator how and why she did it, seemed like she was in full consciousness. May Allah swt take away her ability to ever have kids again. She wanted “normal” kids while herself wasn’t a normal mom (which normal mom would kill her kids??)