WHAT MIGHT AN EVP SAY?

On the blog Mystorical is an account of unsolved and grisly murders in Oklahoma City in the 1970's.  Read the story in "What Lies Beneath" .  Such an area would make an interesting investigation since the houses are all gone.  Could an EVP of quality be recorded in such an area?  With the neighborhoods all gone where the murders occurred and open spaces in their place has something been waiting to communicate an identity? Would photographic evidence be possible?