the dog:....the relevance is did the dog bark?...a dog close to its owner would be barking incessantly and even neighbors would probably hear it....was the dog at home?...when the cops got there, was the dog still in a panic?....
The Curious Incident of the Dog in the Night-Time...if the dog didn't bark, why not? Was it dead? Did it know the person? Was it locked away somewhere? Did it run away?