A UNC shooting claims faculty life, prompting calls for stricter state gun regulations.
600 students rally for gun control, honoring slain professor Zijie Yan in a somber event.
Yan, a research leader, killed by student in a campus science building, shocking community.
Rally attendees recount lockdown terror, demand political action and legislative change.
Gun control advocate David Hogg consoles students, urges political engagement and voting impact.
Hogg criticizes NC Republicans for gun policies, Democrats prepare for legislative battle.
State party chair Anderson Clayton demands urgent action, criticizes Republican leadership's response.
UNC Young Democrats register voters, demonstrating commitment to policy reform and change.