her story tonight from nbc's cynthia mcfadden. >> reporter: britney maynard says she only has 23 dayso live. it wasn't supposed to be this way. the 29-year-old newlywed was living in california. >> we went away to the wine country for kind of a celebration. and the following day i was diagnosed with cancer. >> reporter: she had brain surgery, but her cancer was too aggressive. doctors told her she only had six months to live and that the end would be painful. so she moved to oregon, where she qualified for a prescription that could end her life. on her own term. >> i can't even tell you the amount of relief it provides me to know that i don't have to die the way that it's been described to me, that my brain tumor would take me on its own. >> reporter: oregon is one of five states where such decisions are legal. but only two-thirds who receive the prescriptions actually take them. britney says she plans to take hers on november 1st, so she can celebrate her husband's birthday with him before dying. >> i hope to enjoy however many days i have left on this beautiful earth and spend as mu

our "making a difference" report tonight from nbc's cynthia mcfadden. ♪ i'm still here but yet i'm gone> reporter: this is a legend at work. glen campbell singing the last song of his 50-year career. this final video recorded nearly two years ago but seen here for the first time. ♪ i'm not gonna miss you >> reporter: the words, the truth about the disease destroying his brain. >> this indicates that in all likelihood your difficulties are due to alzheimer's. >> reporter: devastating news that would have meant the end for most entertainers. >> i ain't done yet. just tell them that. good evening, ladies and gentlemen. i'm glen campbell. ♪ it's knowing that your door's always open ♪ ♪ and your path is free to walk ♪ >> reporter: but for all his success, his most enduring legacy might be the battle he's waged with alzheimer's disease. not just going public with the diagnosis three years ago but heading out on a farewell tour with three of his kids. his wife in the wings it was a high wire act. i mean, you're holding your breath will he be able to make it through the performance. >> we all h

and five countries, brian, gays are subjected to the death penalty. >> cynthia mcfadden on the storyith us here in the studio tonight. cynthia, thank you, as always. >>> let's go all the way west to hawaii tonight. it's not difficult to outrun the lava flow there, but it is impossible to stop it. the national guard today deployed 83 troops to a community in the path of that lava flow on the big island. they will set up road blocks and patrols now to keep people away. beyond that, there is little else anyone can do. and as it stands right now tonight, 40 to 50 homes stand threatened. >>> we are down to the wire, five days left for candidates to win your love, or at least your vote in the midterm elections. chuck todd, our political director, moderator of "meet the press," has been on the road covering the races that could shift the balance of power. seven battleground stays in the all. 3,153 miles traveled. and tonight, chuck brings the trip to an end in the state of louisiana, where a sitting democratic senator is fighting for her political life. hey, chuck, good evening. >> reporter

and five countries, brian, gays are subjected to the death penalty. >> cynthia mcfadden on the storyith us here in the studio tonight. cynthia, thank you, as always. >>> let's go all the way west to hawaii tonight. it's not difficult to outrun the lava flow there, but it is impossible to stop it. the national guard today deployed 83 troops to a community in the path of that lava flow on the big island. they will set up road blocks and patrols now to keep people away. beyond that, there is little else anyone can do. and as it stands right now tonight, 40 to 50 homes stand threatened. >>> back here in the lower 48, millions are keeping a close eye on the weather tonight. inarts of the northeast, people still talk about the halloween storm a few years back when snow falling on trees still full of leaves left some without power for days. nothing that severe, but there is weather and we have meteorologist janice huff in the weather center. janice, how much? how bad? >> brian, it is going to be significant for this part of the country. we are talking about the great smoky mountains that us

our "making a difference" report tonight from nbc's cynthia mcfadden. ♪ i'm still here but yet i'm goneporter: this is a legend at work. glen campbell singing the last song of his 50-year career. this final video recorded nearly two years ago but seen here for the first time. ♪ i'm not gonna miss you >> reporter: the word, the truth about the disease destroying his brain. >> this indicates that in all likelihood your difficulties are due to alzheimer's. >> reporter: devastating news that would have meant the end for most entertainers. >> i ain't done yet. good evening, ladies and gentlemen. i'm glen campbell. ♪ it's knowing that your door's always open ♪ ♪ and your path is free to walk ♪ >> reporter: but for all his success, his most enduring legacy might be his diagnosis with alsz himer's disease. heading out on a tour with three of his kids. his wife in the wings at every show. >> it was a high wire act. you're holding your breath will he make it through the performance. >> we all held our breath every single night. >> who are these people over here? oh, yeah, there they are. >> repor

our report tonight from nbc's cynthia mcfadden. >> reporter: today, tim cook did what no other fortune 500 ceo has ever done, came out as gay. in a written statement in "business week" the am ceo said, "while i have never denied my sexuality, i haven't publicly acknowledge it had either, until now. so, let me be clear. i am proud to be gay. and i consider being gay among the greatest gifts god has given me. "why does this matter today, or does it? >> yeah, it's sad that it matters, 'cause it shouldn't matter, never have anybody saying i'm homosexual, but it matters because it is still not accepted all over the place. and now we have a major player saying i'm gay, which opens the door to many other things to come. >> reporter: cook's sexuality has long been the topic of speculation. he told brian in a 2012 interview, he values his privacy. >> i'm a private person. and, you know, i like being anonymous. >> reporter: he also appeared in an apple video promoting gay pride, but didn't speak. ♪ just a couple of days ago in his home state of alabama, cook seemed to edge closer to making a per

cynthia mcfadden is here with one star that's trying to change the perception of this devastating diseasesee you, matt. when 78-year-old glen campbell was diagnosed with alzheimer's three years ago, he decided he wanted to do something about the stigma and shame that is often accompanied with the dreaded disease. the result is a powerful new documentary already surrounded by oscar buzz. >> who is that? >> it's you, honey. >> it is a scene played out in millions of home. >> that's me there? no kidding. >> alzheimer's. taking away the most precious of memories. this time, it's music legend glen campbell. >> this indicates in all likelihood your difficulties are due to alzheimer's. >> reporter: devastating news that would have meant the end for most entertainers. >> i ain't done yet. just tell him that. >> good evening, ladies and gentlemen. i'm glen campbell. it's knowing that your door is always open and your past is free to walk. >> a dazzling career. >> entertainer of the year, glen campbell. ♪ like a rhinestone ko bcowboy ♪ >> reporter: not just going public with the diagnosis, but head