This is the child whose fall into Cincinnati Zoo gorilla enclosure resulted in the death of 17-year-old silverback, Harambe. Three-year-old Isiah Gregg has been seen for the first time back as a normal three-year-old: clutching a toy truck and wearing an orange Nintendo Super Mario T-shirt that read 'I Make Awesome Happen.' The scars of his experience were clearly visible in the form of scrapes on his forehead and elbow. Isiah's mother Michelle Gregg, 32 and father Deonne Dickerson, 36, have been staying with friends since they found themselves mired in controversy following the accident which took place last Saturday. Earlier this week police announced that they would be investigating Ms Gregg to determine whether or not parental negligence played any part in the incident that saw Isiah tumble 15 feet into the moat of Harambe's enclosure. The 450lb gorilla dragged the child through the water before standing over him as the horrified crowd of zoo visitors looked on. Yesterday police visited Gregg at the Cincinnati townhouse in which she, Dickerson and their four children are staying. The officers questioned her for 90 minutes in their bid to establish just how Isiah slipped from her care to breach the enclosure's three-foot metal and wire perimeter fence and the four feet tall bushes beyond. Police have not recommended criminal charges in the case, a decision made after the interview. The zoo has announced plans to increase the fence height by half a foot. Isiah's parents have not yet spoken publicly about the ordeal with their only communication coming in the form of a Facebook statement posted by Gregg the day after the accident and statements issued by the PR retained by the family shortly after. They had received death threats from around the world over the shooting of the gorilla. But this week Isiah's grandmother Valerie Dickerson, 55, gave an exclusive interview to Daily Mail Online. Speaking in front of her Cleveland home Dickerson gave the first true insight into the family at the center of a story that has seen them criticized and supported in almost equal measure. And according to Dickerson, who has been in daily contact with her son Deonne and his family, she believed the zoo should not have shot Harambe.