RSBM
Pretty sure a ladder would've worked.
It seems they (zoo staff) should have tried to distract the gorilla--and not just shoot it right away ? And what if they'd shot the child by accident ?
Then again perhaps not. Trying to think of possible options to having to shoot a magnificent animal.
We are losing some of Earth's precious animals and that's tragic.
That's what they did in the other situation with Jumbo the gorilla. Jumped into enclosure and got the child out. This particular enclosure in Cincinnati seems to be a lot deeper, so I don't recommend anyone jumped in, but they could have used a ladder.