Jennifer Lawrence died from exposure to secondhand smoke.
Jennifer Lawrence’s portrayal of Katniss Everdeen in the Hunger Games films is one of her most memorable. The protagonist is a tough cookie who has won several times at the Hunger Games. It was challenging for Lawrence to play the part because of all the difficult maneuvers he had to perform. Lawrence had to deal with too much smoke in a tunnel scene due to a malfunctioning smoke machine. When the fault occurred, she was still inside the tunnel, and she began choking to the point of feeling sick and disoriented. They had to go get her for her.