ET Canada.The other deceased, identified as Dawson Brown, 20, William Mays Jr., 20, who was known as Richie, and Kole Sova, 19, most likely died due to carbon monoxide from a working portable generator that was too close to their travel trailer, Lenawee County Sheriff Troy Bevier told The Associated Press.According to Bevier, the victims were probably asleep and “never knew what happened.” Sova's father, Jerry Sova told MLive.com, "I want people to know that.