http://www.dailyrecord.co.uk/news/uk-world-news/mother-boy-who-sparked-zoo-8127933
Fortunately common sense has prevailed, and no charges are to be brought against the parents. From the above article:
Hamilton County prosecutor Joe Deters said the case did not come close to warranting a charge of child endangerment, and he defended Michelle Gregg, 32, as an attentive parent undeserving of the sharp criticism and threats.
He said the mother had three other children with her at the zoo and had turned away "for a few seconds" to attend to one when the boy took off.
"If anyone doesn't believe a three-year-old can scamper off very quickly, they've never had kids. Because they can. And they do," Deters said.
Legal experts had said all along that child endangerment charges were unlikely under such circumstances.
Echoing those experts, Deters said there was no evidence the mother heedlessly put her child in danger, as prosecutors would have had to show.
"If she had been in the bathroom smoking crack, that would be a different story. But that's not what happened here," the prosecutor said.
Deters said he has been "a bit taken aback" by the reaction to the gorilla's death.
He added: "The zoo suffered a great loss but it is still an animal. It does not equate with human life. And they felt that this boy's life was in jeopardy and they made the painful choice to do what they did."
So maybe all the demonisers of the parents will lay off now, but sadly I doubt it.
At least the poor parents can get over their shock without the cloud of possible charges hanging over them to make it worse.