When he was diagnosed with esophageal cancer, surgery was performed along with chemo and radiation, but later he was told that his cancer had spread to his lymph nodes, liver and lung. That's when he was given the grim news that he only had about 11 months to live. Feeling that continuing chemotherapy would kill him, Dave Gallant and his wife Marilyn, from British Columbia, Canada, started on cannabis oil. A recent scan found "no evidence of disease."