[LurkedLongEnough]

Absolutely. The following is not a hasty condemnation of the dad, but surely on the minds of the investigators... excerpt from long article in Sept 2001 Indiana Observer about SERIAL KILLERS:

"Many serial killers seem incapable of telling the truth. They lie on a minute to minute basis, to everyone, about everything, even when it does not benefit them. Or, it is possible that rather than being liars, serial killers simply don't know fantasy from reality, which might be part of, just part of, their problem. Police investigators have found that some serial killers have a knack for registering "no deception" on polygraph tests when they falsely answer questions. This says something about serial killers. (Or it says something about polygraph tests. Think about it. The most vicious criminals, serial killers, are more likely to pass a lie detector test than are average citizens ?) Interviewing serial killers must be done with skepticism."

[crystalk]

These sleazy little cloth screens, we have now, I can think of a thousand ways a household with six small children at home could cut that six-inch screen from the inside. And not even know it.

[Pistias]

Or it says something about polygraph tests. Think about it. The most vicious criminals, serial killers, are more likely to pass a lie detector test than are average citizens ?

Polygraph is a poor measure of truthfulness--if you don't think it's a lie, or really don't think there's anything wrong with lying, why would you be nervous? Average joes believe the polygrapher has some magic power to read the truth, and they betray themselves.

[ladyinred]

Makes sense since one has to have a reaction to questions to register on the polygraph. Most serial killers feel no guilt or remorse so they wouldn't likely register negatively on the graph.
This is a strange story, but I am confident the police know more than they are telling. Please God, let that be so.