An American dentist and big game hunter kills a famous lion in Zimbabwe, skinning and leaving behind a headless corpse after taking almost 2 days to track and kill the wounded lion. Walter Palmer. Poachers killed five elephants in Kenya, hacking their tusks off. Asian countries fuel the demand for illegal ivory. However, the US and China are the two largest consumers of ivory. Asia. Donald Trump's sons are also big game hunters and posed with their trophy kills, which included a leopard and a crocodile. One photo shows one of the sons holding the cut off tail of an elephant. Trump sons. President Obama announces new restriction on US ivory sales. Some lawmakers plan to oppose the proposed rule because the NRA thinks it will band the sale of guns with ivory inlays. NRA.