WESTMINSTER, Colo. (AP) — Anxious parents kept close and protective watch over their children on Friday after the FBI warned them that a 10-year-old girl who vanished a week earlier may have been abducted by someone they know.

The sense of dread and suspense was magnified in the quiet Denver suburb of Westminster as residents waited for police to release the identity of a body found in a nearby park.

Jessica Ridgeway, the missing girl, began a short walk from her home to Witt Elementary School on the morning of Oct. 5 but never arrived. A massive search by hundreds of law enforcement officers did not start until hours later because Jessica's mother works nights and slept through a call from school officials saying Jessica wasn't there.