Keto the killer whale ravaged his trainer Alexis Martínez in an unthinkable attack. The famous orca sadly passed away , aged 29, after 'showing signs of discomfort in recent days', according to Tenerife zoo Loro Parque. The 6,600lb killer whale, who was born in 1995, spent his whole life in captivity. He grew up in SeaWorld in Orlando before fatally attacking his trainer in 2009. Keto was then moved to the zoo where he died. Over the weekend, 21 vets took part in the necropsy, although his