I watch Nancy Grace too, and I wouldn't miss her program if she was covering a missing child/murder that happened in my city. There's been only a few murders here, and I know that when a murder has happened, there's intense interest by everyone in my community, so I sure don't fault anyone in Orlando for following this case closely.
And, I don't fault Roy Kronk for being the unfortunate person who found Caylee's remains. If people blame the person who finds the body of a missing person, no one would be willing to participate in a search party.