A disturbed man who walks into a schoolhouse, orders all boys to leave, and then starts killing the girls (aged 6-13). He forces the remaining girls to line up against the blackboard, where he ties their feet together. He then methodically executes all girls with a shot to the head.
See Amish school shooting, Colorado Middle School shooting, École Polytechnique massacre, and many others around the world.
An Anti-Feminist hates women and wants to kill them.