They sure are old enough to talk ~ just remember Jessie Davis' little boy, Blake who was 2 y/o and "saw mommy in the rug". The only thing about leaving them alone in the house at that age is they could wake up in the middle of the night and call out for mommy or daddy, get no answer and start wandering around looking. I wonder if they could've been locked in their bedroom? In other words, how could Nancy be killed inside the house and him be sure the kids didn't see anything?
Yep i followed jessie! Im thinking he had no choice! He had to chance it! Bobby left blake for days! JMO