Thirty years after a truck bomb detonated outside a federal building in America's heartland, killing 168 people in the deadliest homegrown attack on U.S. soil, deep scars remain.
From a mother who lost her first-born baby, a son who never got to know his father, and a young man so badly injured that he still struggles to breathe, three decades have not healed the wounds from the Oklahoma City bombing on April 19, 1995.
