Shawn R. Sturtz and William C. Cornell were inseparable, according to friends and acquaintances at Green Bay East High School. They ate lunch together, played with Yu-Gi-Oh game cards during class and played video games after school.
They shared some other things: At 300 pounds each, the two 17-year-old boys felt the verbal barbs and bullying of classmates, and, according to police, each had a fascination with the 1999 attack at Columbine High School near Denver.
Authorities here say that over the past two years, the pair plotted in secret to carry out their own version of the Columbine attack. They stockpiled guns and ammunition and mixed homemade explosives and napalm in Cornell’s large, yellow Victorian house in a leafy neighborhood a few blocks from the high school.
Last week, Sturtz proposed carrying out the plan, which involved shooting guns and setting off explosives in the school while blocking the exits with burning napalm, according to John P. Zakowski, Brown County district attorney.