Authorities say Danielle Jacobsen's body was found in a pond off Northbrook Drive in Monroe Sunday morning, after she failed to return home from a late-night party. Police are still trying to determine how she died, and an autopsy is planned.
Police say she was last seen at a home in the Northbrook Drive area.
Officials at Newtown High School say a moment of silence for Jacobsen is set for 8:15 a.m. Tuesday, and grief counselors will be on hand.
School officials call her death shocking and sad, and students were offering prayers on social networking websites.
