in laredo, texas, i'm sarah dallof, nbc news. >>> the obama administration's diplomatic point man in the fight against isis says the group is shrinking. special presidential envoy also says the terrorist group is losing territory and that the u.s.-led coalition against isis is succeeding. >> they're finding the leaders. we're killing the leaders, and that's going to continue. they're shutting down access to internet cafes. they're doing all sorts of things in raqqah, which shows to us they're increasingly nervous. and they should be nervous. >> these comments came the same day a string of isis attacks killed at least 29 people, 15 near baghdad and another 14 at a coordinated assault at a natural gas plant near baghdad. more than 141 people have been killed during five straight days of attacks around the iraqi capital. >>> federal aviation officials are investigating a deadly stunt plane crash at an atlanta air show saturday that was caught on camera. a warning -- some viewers may find this video disturbing. it shows the plane rising high in the air in what appears to be a loop. the p

nbc's sarah dallof has more. >> reporter: finally twisters rumbled across northeast colorado, sweeping up debris and darkening skies. this massive tornado was one of several spotted in ray, colorado. >> it was one of the most photogenic tornadoes i've ever seen. like no other tornado i've ever seen before, literally, in 35 years. >> reporter: there were no fatalities, but at least five people were injured. debris strewn for miles. dozens of electrical poles were destroyed, leaving many without power. >> never been through anything like this. >> reporter: outside denver near the city of wiggins, a multivortex tornado lifted motor homes and uprooted trees. >> campers upside down, sideways, floating in the lake. a boat shed that has just been crushed. >> reporter: in arizona, a rare winter blast in flagstaff. just an hour west, hail and rain were to blame for at least six injuries and two deaths on i-40 which closed for hours. arizona was one of ten states with reports of damaging hail saturday. as the storm pushes east, millions are in the threat zone. more tornadoes and hail possible in

in laredo, texas, i'm sarah dallof, nbc news. >>> the obama administration's diplomatic point man in the fight against isis says the group is shrinking. special presidential envoy brett mcguirk also says that the terrorist group is losing territory and that the coalition against isis is succeeding. >> we are finding the leaders. we're killing the leaders. and that's going to continue. they're shutting down access to internet cafes, doing all sorts of things in raqqah which just shows us to that they're increasingly nervous, and they should be vs in. >> these comments came the same day that a string of isis attacks killed at least 29 people. 15 people near baghdad and another 14 at a coordinated assault on a natural gas plant north of baghdad. more than 140 people in total have been killed during five straight days of attacks around the iraqi capital. >>> federal aviation officials are investigating a deadly stunt plane crash at an atlanta area air show saturday that was caught on camera. and we do have a warning for you today because some viewers may find this video disturbing. it sh

nbc's sarah dallof has more. >> reporter: the friendship at the height of the vietnam war.ike peterson and max stretch mcmullen. 19-year-olds from opposite sides of the u.s. one shy, one quick to crack a joke. it was pete's quietness. maybe the need that he needed to make a friend and i lt as though i could be his friend. >> reporter: the matching white tops they wore a symbol of their bond. >> that's the story behind the tank top? >> i loved it. he was the only one in the white tank top. he asked if i wanted one. absolutely i want one. we were wearing tank tops in a war zone. white tank tops in a war zone. probably wasn't smart. but it was pretty cool. >> reporter: between the jokes, difficult times and danger. in april of 1971, stretch's patrol came under attack. >> next thing you know, a mortar round hit the personnel carrier. >> reporter: this shows the artillery they fired back trying to save their comrades. stretch survived, but was shot. even talking about it now is difficult. after vietnam, the two lost contact as they tried to distance themselves from the war. they

nbc's sarah dallof is in laredo with more. >> reporter: we're told the majority of the victims are in their 50s to 60s with one victim being as old as 83. they were traveling to a casino on the texas/mexico border. they were on a charter bus when it rolled just before noon. the county medical examiner describes it as the worst commercial vehicle accident she has seen in ten years. the ntsb now is on scene. they've launched their own caused this accident. one possibility, slick roads. we're told it was raining at the time of the accident. no word yet on if that contributed to this tragedy. in laredo, texas, i'm sarah dal o lof. zblrngs the obama m's diplomatic point man in the fight against isis says the group is shrinking. he also says the terrorist group is losing territory and that the u.s.-led coalition against isis is succeeding. >> they're finding the leaders. we're killing the leaders, and that's going to continue. they're shutting down access to internet cafes. they're doing all sorts of things in raqqah, which shows to us they're increasingly nervous. >> these comments came th

nbc's sarah dallof is there. what's the latest on the investigation?orward as to who placed this information on the twitter account? >> reporter: that is really the key question. the investigation can't move forward until either the victim in this alleged attack has come forward or authorities are able to identify someone involved in this purported crime. the investigation at the schools, they have launched one. like i said, kind of waiting on this -- not kind of, they are waiting to find out more about the poster behind the rape that spelman tweets. that poster claims she was sexually assaulted by four morehouse students and when she approached the administrator, she was told to give the men a pass because of the close relationship between spelman and morehouse. the schools deny any knowledge of this supposed crime. presidents of both these colleges made public pleas for this victim to come forward, identify herself to them so they can offer support and get more details of this alleged crime. the events of this last week speak to the effect that socia