October 4, 1969 – At the conclusion of a march sponsored by the Students for a Democratic Society from Grant Park to the Federal Building and back in which 350 protestors demand the immediate withdrawal of all troops in Vietnam, two protestors, armed with guns, knives, and swords, are arrested in Old Town. The cache is discovered in a camper from which the two men from California apparently are selling weapons to be used between October 8 and 11 at protests planned by the Weatherman faction of the S.D.S. The occupants of the truck, Dennis Sleeth and Daniel Brucher, both from California, are arrested after police find a 20-gauge shotgun, 25 rounds of ammunition, a 22-caliber pistol with 58 rounds, five Samurai swords and 13 knives in sheaths. At the same time the subversive unit of the police department raids the S.D.S. national headquarters at 1608 Madison Street and arrests Caroline Tanner of Pennsylvania for her involvement in the beating of four policemen in front of the Federal Building on September 24.