The whole world balances on very fine lines. I just saw a 'women empowerment' post about showing a bit of nipple on a shirt, saying it's perfectly fine, but it's not fine not wearing a bra at all.
If you watch all the footage, it's blatantly clear the gorilla was protecting the child. He saw it was hurt and distressed, as well as the people screaming at him. It's clear he sensed some danger and protected the child by standing over him, if that Gorilla wanted to, he could pinch his head and squash it like a watermelon, have no doubts about that.
It's difficult handling the situation but there have been more than a handful of situations like this in the past where the Gorilla simply allowed the caretakers to retrieve the child. It's not wrong that the human life was given more priority, that's the world we live in but I think it's wrong to label something with what seems like nothing but good intentions as simply wanting to kill the child and therefore deserved it.
EDIT:
For the people that have seen the whole footage, the Gorilla has never fathered Children and I'm fairly sure lived in the isolated location for a long time. He would have no knowledge on how to handle a child, similar to a person unfamiliar on how to carry a child. He dragged the child to move him around and attempt to maneuver away from the mob, it's blatantly clear if you watch it ALL.