Re: Blue Iguanas Killed at Facility at Grand Cayma Trying to understand why someone would do this is to understand the enigma of madness. Several years ago we had a serial killer of cats in my area. people would come home to find their cats laying in the yard like they were sleeping. Upon closer inspection they found that their animals were dead, and they were cut in half! The situation was big local news for a while. I never heard whether they caught any one.