Where were the neighbors?...
The oldest is 29????????
WHAT????
Where was the State of CA....if they were born there????
Lots of unanswered questions. As you suggest, half of the horror of this story is that they got away with it for 29 years with no one ever noticing anything amiss.
It’s also a new development and middle class. So they moved there within two years.
Calif and usa abandoned mental health institutions cuz they thought first gen antipsychotic drugs would keep mentally ill fit enuf to live in society. They were(are) incorrect. It does help but once off meds goodbye functionality. Every now and then you have some who are quietly quite crazy...like the two people in this story...cali aint gonna get involved until crimes have been committed and then you got idiotic judges...lawyers...and jurors..who epitomize jury nullification.