On May 19, a nurse at the severely overcrowded Border Protection facility in McAllen, Texas, diagnosed 16-year-old Carlos Gregorio Hernandez Vasquez with the flu, and found he had a temperature of 103 degrees. She said he should be checked again in two hours and taken to the emergency room if his condition didn't improve.

Instead of following the nurse's recommendations, the facility moved him to another facility in nearby Weslaco and put him in a cell with another sick teenager. The next morning, according to a Customs and Border Protection (CBP) press release, an agent checking on him found Vasquez "unresponsive." He had died during the night. CBP, the release read, remained "committed to the health, safety and humane treatment of those in our custody."

According to an investigation by ProPublica, though, CBP failed to meet its own standards and regulations, and even distorted the facts of Vasquez's death. To start with, Vasquez, originally from Guatemala, had been held in a CBP facility for six days by the time he died, despite the agency being required to transfer minors to the Office of Refugee Resettlement in the Department of Health and Human Services after 72 hours. On top of that, Vasquez wasn't found "unresponsive" by a CBP agent—it was the other teen in the cell who found him, and had to alert the staff. This was captured on security-camera footage of the cell, which shows Vasquez "writhing for at least 25 minutes on the floor and a concrete bench" and "staggering to the toilet and collapsing on the floor, where he remained in the same position for the next four and a half hours."

Based on the video, the reporters at ProPublica argue that it's unlikely any Border Patrol agents actually checked on Vasquez at any point, despite his obvious illness and the direction from the McAllen center nurse: