TODAY | September 29, 2013
>> questions still lingering today three months after one of the nation's deadlyist rest wildfires killed 19 men, part of an elite hot shot team. on saturday investigators released a report about the fire. but in many ways there are more questions than answers. we get more on this now from nbc's miguel almaguer.
>> reporter: this video posted on youtube of the granite mountain hot shot team was taken shortly before the elite unit was killed. 19 men lost their lives. investigators now say during the raging yarnell hill fire radio communications were challenging. through updates, brief, informal and vague. there was a critical 33-minute communication blackout before flames swept over the team.
>> there was a period that we don't know, we don't have all the information.
>> reporter: the three-month investigation placed no blame. it says the hotshots were in a safety zone atop a ridge when, for unknown reasons, the team ascended into a valley when a thunderstorm changed the intensity and spread of a blaze, the men were trapped in a ball of fire, temperatures competed 2,000 degrees.
>> no one directed to move from the location that they were in. obviously they made a decision based on the information that they had.
>> there's of me constituent unsettled.
>> reporter: julie ann ashcraft lost andrew. the report leaves many questions.
>> nothing would bring them home. i knew going into it that all i want in life is one moment with my husband again and that's not going to happen.
>> reporter: this morning the investigation is over. for some closure and answers will never come. for "today," miguel almaguer, nbc news, los angeles .