His head was banging on concrete. This was not a gentle thing. The child was at risk."[16][17][18] Police investigated possible criminal charges against the parents, while the parents defended the zoo's actions.[19][20] The boy's mother also became the target of harassment on the internet and social media.[21] On June 6, 2016, Ohio prosecutor Joe Deters said that the mother would not face any charges of wrongdoing.[22] The zoo was being investigated by the Association of Zoos and Aquariums (AZA), which sets the standards for zoos, and the USDA.[1]