9:36 AM:
UPDATE: The phone used and person who sent the threat have been located at Delavan High School, according to Delavan Police Chief Tim O’Neill.
O’Neill said it was a male student and he is in custody at Delavan High School.
Officials said Delavan High School was on full lock-down for about 20 minutes when the phone that made the threat was located at the school.
O’Neill said it does not look like any shooting was actually planned.
Via Student who made social media threat is located at Delavan High School @ TMJ4.
Previously: WISN: East Troy says school threat made on social media.
Via WISN’s YouTube Channel: “Published October 17, 2014. East Troy superintendent Chris Hibner said a threat against a school in the area was made on the social media app Yik Yak.”