It was unclear whether Kyron was in class Friday or when anyone noticed he was missing because police have been reticent to disclose public details of the search. Shelby said authorities don't want to give out information that could contradict a potential witness's recollection, but the school has a good idea of when Kyron was reported absent.
"We don't want to cloud anyone's recollection," Shelby said. "We'll defer to the authorities."
An autodial system used to report absences in all Portland high schools and middle schools was not yet installed at Skyline Elementary, Shelby said. The system has been installed in 37 of the district's 57 schools.
Shelby said the system would have alerted a parent's primary phone number at about midday that his or her student was absent.
Kyron's parents didn't attend the news conference Monday, and Gates said they didn't want to comment to avoid interfering with the investigation.
here...
http://news.yahoo.com/s/ap/20100607/...ing_oregon_boy