DENVER (AP) — Dozens of people participated in a “lie-down” at Colorado’s state Capitol Monday to demand stricter gun control and mark the 10th anniversary of the Columbine High School shootings. Thirteen people representing those killed at Columbine lay like spokes of a wheel at the west steps of the Capitol. They had wrapped blue and white ribbons around their necks, the official colors of the suburban Denver school. Others kneeled nearby as the names of the 23 injured in the April 20, 1999, attack also were read. Among them was Mallory Sanders, granddaughter of slain teacher Dave Sanders, and Steve Wewer, godfather of slain student Daniel Mauser.