Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: A controversial Spanish aquarium trainer who was accused of abusing dolphins has been found dead following a suspected suicide. Jose Luis Barbero, 59, who was due to arrive in the US to work at the Georgia Aquarium at the beginning of March believed to have taken his own life in Spain after he started receiving death threats when video emerged of him apparently kicking and hitting the animals . The 59-year-old was working on the resort island of Mallorca in the Mediterranean Sea when he vanished on Friday after the damning footage surfaced. Scroll down for video Dolphin trainer Jose Luis Barbero, who was just hired by the Georgia Aquarium in Atlanta, has been found dead in Spain following a suspected suicideJose Luis Barbero went missing from island of Mallorca near SpainA statement from the aquarium said he has since been found deadHe was due to start work as vice president at Georgia Aquarium this monthThe 59-year-old was allegedly seen badly mistreating dolphins in videosAfter the videos surfaced, he reportedly began receiving death threatsBarbero was last seen leaving his home on TuesdayAquarium has a zero tolerance policy towards mistreatment of animals 
 Question:The most recent video allegedly shows Barbero being aggressive towards dolphins during a training session at a theme park in S_.

Spanish