MSNBC Dateline November 17, 2019 10:23:00
>> but who could get hold of such an expensive and exotic weapon? and just how did they deliver the fatal dose? when detectives went step by step with litvinenko through the day he was poisoned, he named three potential suspects -- the two russians and the italian. the first one we found was the italian. the first one we met was the italian. so now in rome, we're on our way to see mario scaramella, who hopefully can shed some more light on who killed alexander litvinenko and why. scaramella has been a hard man to pin down. first, he wanted to meet us in naples, then new york, then london. he f...