Murder in a Village

my name is Sherlock Jack I am working as an investigation officer in Europe there was a murder in street no 213 house and Sherlock got a call from the FBI and ask him to investigate the case of murder and Sherlock said them ok and he plan a visit to street no 213 house to see the body.

It was body of man and the mand was kill by hitting hammer on the head .

Then he understands that the killer is a Psyco.