Key Highlights
- Gerson de Melo Machado, 19, was mauled to death by a lion in Brazil.
- He climbed over an 18-foot fence to enter the lioness's enclosure.
- Machado had aspirations to be a lion tamer and was diagnosed with schizophrenia.
- The incident occurred at Parque Zoobotânico Arruda Câmara in João Pessoa.
- A video captured the moment he was attacked by the lioness.


