June 1, 2015 11:50 am NBC4's 21st Century Solutions: Colleen Williams and Carolyn Johnson NBC4’s 21st Century Solutions grant challenge is now accepting applications through July 3, 2015. Find out how to enter. US & World Videos 3:03 USC security changes after encampment removal 3:14 USC prepares for graduation after encampment removal 1:57 Hazmat team responds after two people are found dead in Northridge 1:04 Homeboy Industries founder Father Gregory Boyle receives nation's highest honor 5:46 NewsConference: Why the political silence during the campus chaos?