Former pole vault world champion Shawn Barber has died aged 29 from "medical complications," the department of athletics of his former University of Akron in the US state of Ohio said on Thursday evening. Barber died at home in Kingwood, Texas, on Wednesday and the cause of death was not yet known. He had fallen ill and had been experiencing poor health for some time. Barber won the 2015 world title at the age of 21. At the world championships in Beijing, he struck gold with a winning vault of 5