. >> reporter: the internist and addiction specialist at san francisco's tom waddell health center, overear and a half: >> i have seen three or four patients where i said, this is definitely a case. >> reporter: cases of an ear, a nose pit, arm, even the chest, turning purple, then black, where the skin and flesh has suddenly died. >> a whole lot more people who have partial signs of it, skin ulcers, low white blood cell count. we don't necessarily know what's causing it. >> reporter: dr. norah kraft with biomedical made the link even called what's happening a potential public health epidemic. >> unfortunately, it goes hand in hand with the destruction of bone marrow. if you don't know your bone marrow is being destroyed, then you can have serious infections and die. >> reporter: because the cocaine is being cut with another drug called lavamasol. >> used to deworm livestock. >> reporter: it's banned for human use but widely available to veterinarians here and in south america, where much of the west coast cocaine is coming from. the drug looks just like cocaine and no matter snorted or

he jumps up and waddels like a turkey. he didn't know he didn't have any toes anymore. madison grinned the woman was a witch much the fields were soft to the touch. all the way home madison told his sister about the witches and the world. when the saudi came to view he stopped talking the door was open the inside shadowy. there was no one in sight but he could hear his sister in law kth rin talking to blue flies. madison tucked his chin as if against the weather. something about the air felt dense. something felt like pushing against water on a flooded plain. well, a lot happens between now and the next morning i will sum it up quickly. madison's sister in law, kith rin refuses to fix saddy's dress and saddy has to wear it to school like that the next day which embarrasses her. madison and katherine had a flirtation going on his sister in law is a few years older than him. next day madison feels sorry from saddy he decides he will sew up her sleeve for her. so this happens walking to school. slowly, saddy unbuttoned her dress and let it fall to her feet. she watched her

i have that pregnancy waddell.avis: it would be the opposite of playing laura, a character and nothing like you. the movie is called "a little help." to to have you on. >> thank you. i appreciate it. tavis: let me and my wishes as he celebrates nato day. 93 years young, nelson mandela. happy birthday, mr. president. as always, keep the faith. >> for more information on the show visit tavis smiley at pbs.org. >> join me next time for george wallace, popular comedian. that is next time. >> every community has martin luther king boulevard. it is the cornerstone we all know. it is not just a street or a boulevard but a place for wal- mart to band together with your community to make everyday better. >> nationwide insurance supports tavis smiley with every question and every answer. nationwide is proud to join in removing obstacles to economic empowerment one at a time. nationwide is on your side. >> and by contributions to your pbs station from viewers like you. thank you. ♪ ♪ >> coleman barks grew up in tennessee, liv

he and nancy have noticed that i've been putting on ú and waddeling instead of walking.now. they said, we think you may be pregnant. i was how could i possibly raise a baby in this place? at first he handcuffed her to keep her from escaping. later he used other measures. phillip gave me this image of the world as a scary place made up of pedophiles and rapists, one of the reasons i stayed was i wanted my kids to be safe. but in august of 2009, everything changed. phillip and nancy were questioned by police, and jay see, afraid to utter her real name, wrote it down for a police woman. it was like breaking an evil spell. i looked at her, and said, i can see my mom? she said yes. >> well, that's it for at 5:00. >>> news4Ñ" =0 >>> at the top tonight, É board. i i'm dorene against gentzler. >> i'm jim van