A former US Olympics gymnastics coach has killed himself hours after he was charged with sexual assault and human trafficking, officials say. The office of Michigan Attorney General Dana Nessel confirmed the death of John Geddert on Thursday afternoon. In the morning, Ms Nessel had outlined 24 felony charges facing Geddert. Geddert was head of the women's gymnastics team in 2012 and worked closely with team doctor Larry Nassar who abused hundreds of athletes. Geddert, 63, had owned the training facility in Michigan