Pet hippo kills its owner -Humphrey the Pet Hippo Kills Its Owner - Earlier Warning, Trapped a Boy and Grandpa in Tree,Humphrey the pet hippo has killed its owner, the 1.2 ton wild animal was being kept as a pet. Earlier this year, the hungry hippo had sought the same end for a boy and his grandpa and many warned that he was a wild animal and would eventually kill. In the earlier scare, the 52-year-old man and his seven-year-old grandson spent two hours in a tree after being chased by Humphrey while canoeing on the river and the man that came to rescue them and talked and lured the hippo away is the man that was killed this week, Maj. Marius Els.He was 40 years old. The hippo was shot and killed after it dragged Els into the water and killed him. The UK Guardian reveals Els, who also kept giraffe and rhino, claimed the sound of his voice would lure Humphrey back home. He regarded the hippo as "loveable" and a "gentle giant". A farmer in South Africa has been killed ...