a bullet, a chalk line,crime tape, fibres, fingerprints, strands of hair, an identikit, a mug shot, footprints, blood splatters, DNA samples, the murder weapon, a gun, a rope, poison, pills, drugs, a knife, a crime scene, a body, a corpse, a clue, a private detective, a witness, a piece of evidence, a motive, a forensic scientist, the CSI, to investigate, an investigation, a gunshot, a killer, a murderer, a murder, an informer, stabbed, beaten to death, smothered, poisoned, hanged, drugged, strangled, shot down