"Jonnie and fellow chimp Coco appear to have tunnelled out of their cage at Whipsnade Zoo over the weekend. Keepers managed to recapture the younger chimp Coco, but could not catch 41-year-old Jonnie. The zoo says it shot him 'in the interests of public safety'."
They made an example of Jonnie. Actually, it's too easy for me to say that. I feel sorry for the person who had to do it. It does make you wonder, though, whether they could have found another way. A tranquiliser dart would seem to be the solution, but maybe there was a reason why it couldn't be done.