When Penney Serra was brutally murdered in a parking garage, police thought it was an open and shut case. Witnesses saw a suspect flee and blood and fingerprints were discovered. Catching the killer, however, proved more difficult. As the leads grew cold, Detective George Mazzacane consulted psychic Mary Pascarella Downey, who stated that "blood would tell" and came up with the following clues: the color blue, the smell of garage oil, and water. On a visit to the crime site, Mary saw a uniform with a name tag and made out the letter "E" and envisioned greasy hands being wiped on a dirty cloth and a head injury. 26-years later, a fingerprint database identified Edward R. Grant as a suspect. Later, a blood test confirmed he was Penney's killer. Mary's visions were right on--"blood would tell." The day of Penney's murder, Grant was nearby receiving treatment for a head injury; he lived in a town called Waterbury and worked in a garage.