On a morning marked by two separate acts of violence — an elderly woman killed during a walk and a couple gunned down inside a grocery store hours later — Trauma Intervention Program volunteers quietly stepped in to help those left reeling. On West Rochelle Avenue, where police say Devion Teague shot Hester Johnson after demanding her and her friend’s belongings just after 5:45 a.m. Tuesday, volunteers comforted witnesses to the killing, which unfolded on a neighborhood sidewalk. Across the valley, gunfire broke out in aisle four of a Smith’s grocery store at 9750 S. Maryland Parkway around 11:30 a.m. Trauma Intervention Program volunteers were dispatched within minutes. “The quicker they’re able to respond out to the scene, the faster we’re able to start providing support,” the organization’s Executive Director Jill Roberts said. Respond case-by-case When they arrive, volunteers assist people experiencing a range of impacts after a traumatic incident, Roberts said.…