. >> but one of charles' patients, owen beck, was 17 when he came to charles' dispensary with his dadited literally four times a day. >> owen beck was diagnosed with bone cancer his senior year of high school and began six rounds of rigorous chemotherapy. >> it's just terrible, terrible, disgusting feeling all the time. they tried to give me medication for it, pain killers and all kinds of stuff but nothing really worked. >> owen says he couldn't keep the pills down. his doctor recommended medical marijuana and owen talked about it with his dad. >> he was very open to it. just put all political views aside and you know, this is my son and he needs to get better. i think we should try anything that's going to work. >> owen says he'd smoke four times a day and noticed the change immediately. >> it was the only thing that alleviated my symptoms. the nausea would go away. i might be able to eat a small meal, get some nutrition for the day. it would relax me, basically. >> a short time later owen said medical marijuana became even more of a necessity when he had to have his leg amputated.