Peter Sheehy, a history teacher at the Horace Mann School, sat in his bedroom, trolling the Internet. It was the fall of 2006, shortly after lunch on a Saturday afternoon. The school year had just ...

Buena Vista Horace Mann K-8 on the first day of school. Photo taken by Annika Hom, Aug. 16, 2021. Sign up below to get Mission Local’s free newsletter, a daily digest of news you won’t find elsewhere.