DAVID KORESH AND THE DAVIDIANS Branch Davidians, American religious movement that became widely known in 1993, when most of its members were killed in a fire that destroyed their headquarters near Waco, Texas. The fire marked the end of a 51-day siege by United States federal agents. (Microsoft® Encarta® 98 Encyclopedia. © 1993-1997 Microsoft Corporation. All rights reserved.) The Branch Davidians trace their origins to the Davidian movement, a splinter group of Seventh-Day Adventists founded by Adventist leader Victor Houteff in Los Angeles, California, in 1934. Houteff retained the traditional Adventist belief that the apocalypse (the end of the world) and the Seco