Michelle Carroll, of Washington, D.C., offers glow sticks and tooth brushes to kids, as residents arrive for Halloween festivities at Eastern Market in Washington, D.C., Wednesday, Oct. 31, 2012. (Rod Lamkey Jr./The Washington Times)
University students walk to classes as Los Angeles police officers investigate a shooting that occurred Wed. night at a halloween party on the University of Southern California Campus in Los Angeles on Thursday, Nov. 1, 2012. Los Angeles police say two men apprehended after a Halloween shooting on the USC campus are still being interviewed and three of the four people wounded have been released from the hospital. (AP Photo/Nick Ut)