May 11, 2017 12:15 pm How Social Media Can Aid in Weight Loss Kiva Williams is a D.C. resident recently featured in a new Weight Watchers ad. Williams tells NBC4’s Erika Gonzalez how she used social media to hold her self accountable to losing weight. Local 26:39 What to know before getting a cosmetic procedure: The News4 Rundown 1:41 Man shot and killed at gas station off Richmond Highway in Fairfax County 1:42 DC Fire and EMS rescues driver from bank of Rock Creek 2:02 Suspects charged after shooting that injured DC police captain 1:59 DC Water breaks ground on Potomac River Tunnel