Active ingredients in marijuana posses anti-cancer properties?

Marijuana has been show to reduce the size of tumors in people with cancer and keep the cancer from spreading. Below is another video made by a man who used marijuana to cure his cancer. Chemotherapy is a horrible process. It kills all the dividing cells in your body, even the good ones. I watched my Aunt die from cancer. The chemo had her so sick she couldn't get out of bed.