one should always question a story that is completely reliant on anonymous sources. nbc news cannot independently verify rolling stone s reporting. we ve also reached out to giuliani team for a response but have not heard back yet at this time. to note there have been reporting over the years over trump s time in office he had expressed some concerns about giuliani s alcohol use. two years since the u.s. military s chaotic and deadly withdrawal from afghanistan, the families of service members killed in a bombing there are still demanding answers. nbc news correspondent ryan nobles has more. reporter: two years ago herman and alicia lopez lost their son hunter. it s something that no one thinks will ever happen to their family. reporter: he was one of 13 u.s. service members killed in the isis bombing near abby gate atika boule airport in afghanistan. he planned to join his hometown