Killed Litvinenko News Today

Russia when he was poisoned in london that made headlines around the world. A lethal toxin in a Cup Of Tea. Why was he killed . To unravel the mystery, we followed the tale of a dark conspiracy. Are you frightened for your life . Meet and confront the prime suspect. And now, is the danger coming closer . Were the men in the bushes . People say it will never happen here. I know what can happen here because it happened to my husband. Hello, and welcome to dateline. Former russian Agent Alexander L...

>> he was once a kgb agent, bu turned into a local critic o russia when he was poisoned an london and made headline around the world a lethal toxin in a cup of tea >> it was a dirty bomb >> why was he killed to unravel the mystery, we follow the tail of a darke conspiracy >> are you threatened for your life >> we will meet and confront the prime suspect. >> did you put - in the teens >> and now, is the dange coming closer -- >> one man said shoe temp. >> an attack on the expert helping...

>> reporter: but they could have done a better job not spreading it all over the place if they knew. >> they also might say no, theres no way im going to do that. >> reporter: i dont want to handle that radioactive material? >> i am not going to kill myself in the process. >> reporter: to get closer to the truth about who killed litvinenko, we had to talk to the suspects themselves, andrei lugovoi and dmitri kovtun. in kovtuns case, it wasnt easy. a few weeks after litvinenko died of polonium po...

On the second day of our trip he called and said he was ready to talk. coming up -- at last we lay eyes on one of the men believed to have killed litvinenko. now we ask the question the world wants answered. >> did you put polonium in the tea? >> when dateline the real blacklist continues. ♪ me to the moon (elegant music) ♪ and let me play (bell rings)