First 48: Breaking the Silence / Letters of Intent

In Cincinnati, Detectives Keith Witherell and Bill Hilbert attempt to crack the code of silence surrounding the death of a 28-year-old man gunned down on Main Street. In Dallas, Detectives Mark Ahearn and Robert Quirk work quickly to solve the murder of an aspiring social worker who risked her life by reaching out to help a two-time convicted killer.