Mary Jane Jones, 62, and her son Jacob Shepherd, 24, have become cannabis evangelists since the herb led their family to tragedy 20 years ago. Gary Shepherd, Jones's boyfriend and Jacob's father, was shot dead by the Kentucky State Police after a seven-hour stand-off over marijuana plants he was growing in the backyard. Last week, mother and son attended a pro-hemp event put on by Growing Warriors, an agricultural organization for veterans, “a cause that hits close to home." Gary Shepherd was a Vietnam war veteran with a Purple Heart, who felt it was his right to indulge in recreational marijuana, especially given that he first got high as an 18-year-old soldier in Vietnam. His family continues his mission to honor his memory.