may find some of what you're about to see as disturbing. ed lavandera was the only reporter to go on this hunt. he joins us now live. good morning. >> reporter: hi carol. here poaching of black rhinos has spiked. 24 killed by poachers last year and this year the number is up to 60. the government doesn't have a lot of money to fight these poachers and cory knowlton that's why he bid $450,000 and the government says that will go to fighting poachers and that's why he hopes it will make a difference for the future of this species. three days of hunting a black rhino through the unforgiving desert brush of northern namibia ended here.