[Graybeard58]

they should have known that a sex offender lived there.

He didn't live there, he was staying there while registered somewhere else.Take a look at the sex offender registry in your area. How difficult would it be for the authorities to track their every movement?

[blueriver]

I don't buy that. They eventually found out that he spent time in the house across the street. They should have figured that out using whatever data bases they had, only sooner. It could have saved that girl. Also they did go in the house. Something does not make sense to me. Sounds like if the police were more on the ball Jessica would not be dead.