In 1970, Ahmed was featured in a number of films, and after a campaign for his protection, Kenya's president Jomo Kenyatta declared him a living monument. Ahmed ultimately had five armed game rangers protecting him around the clock.
Kaschula says that the tuskers in Zimbabwe have nothing of this sort of protection, but he is trying to encourage some kind of safekeeping for these remaining, matchless pachyderms. His idea: a total ban on hunting the tuskers who possess ivory past a certain size.
"What makes the most logical sense is that I want to put a maximum limit on the ivory that can be sport hunted across the country," he says. "We aren't trying to stop hunting. All we want to say is that the controls in place aren't good enough to protect these animals. These are iconic animals. These are national treasures. They shouldn't be just shot like any animal."
"We have collectively failed to address the issue, which is to really give these animals the true value that they have," he adds.
A hunter's point of view
The vast majority of hunters on the Accurate Reloading forums rejoiced in the recent killing of the great tusker:
"Great hunt! Yes, magnificent animal, but he's undoubtedly done what he needed to do for the gene pool and I'd rather see this ivory in Germany than being marketed by ISIL after some poacher poisoned him," wrote one hunter.
Another hunter posted:
"I share some of the thoughts about it being too much of a magnificent animal to shoot, but with the little knowledge I have about elephants I can tell it was a really old bull, with all that hanging skin, sunken temples and protruding spine, likely in its last years so definitely past its prime with a good chance to spread its genes and with a much clean quicker death that would have been to starve to death."
What can be done
Conservationists like Henley think that the remaining "great" African tuskers - no more than 50 of them across the entire continent, she estimates - should in fact be protected by law similar to the protections given to Ahmed.
"Trophy hunting such animals shows a similar form of disrespect for not only the animal but other people's enjoyment of viewing such majestic creatures," she says. "It is a true privilege in today's day and age. Would any well-educated person consider walking up to the Mona Lisa and scratching their name on it? Surely not: Precious works of art are there for all to enjoy and appreciate."
These large tuskers, she says, "have been conserved with blood, sweat and tears for the enjoyment of all people that appreciate beauty. No one person should be permitted to 'bag' such an animal as theirs."
The great tuskers, she says, are "living museums of bygone eras."
In the meantime, the search is still on to find out who the tusker is. One clue may be found in a post in a forum called 4x4 Community. Photographer Graham Dyer wrote he had visited Gonarezhou late last month. He describes his visit below:
"Every single animal we saw ran as soon as they heard or saw the vehicle. My only explanation was that someone must be shooting them from vehicles for them to be so afraid. Elephant spoor everywhere but they only drink in the safety of the dark."
"One side of the river is the Malapati hunting area and the other national park, but no-one told the animals. One huge tusker we saw was crossing into the hunting area, probably for the last time as he'll be shot in no time with those tusks."
Dyer's post end with a photograph of the bull, which looks - from this amateur's eyes - much like the awe-inspiring tusker shot dead for his two front teeth: