we go the extra mile to bring your holidays home. new and troubling questions about the treatment of migrant children at the u.s. border with mexico. shocking surveillance video released by pro publica shows a sick 16-year-old boy collapsing in his cell unresponsive for hours before being found dead. a warning, the footage is disturbing. >> reporter: these are the final moments of life for this 16-year-old guatemalan migrant carlos hernandez vazquez. the video is not only disturbing to watch but calls into question the official narrative released by border patrol after the teen's death in may. the security footage was first obtained by the investigative team at pro publica. in the surveillance video from the early morning hours of may 20th, the guatemalan teen who was diagnosed with the flu and a 103-degree fever can be seen inside his cell at a border