Three cases from The First 48 that went cold, frustratingdetectives. In Harris County, when a dancer is found murderedin her home, detectives wonder if the killer is someone sheknew. Then, in Tulsa, when a young mother goes missing, herfamily fears they may never get answers, until a break in thecase four years later. And, in Miami, when a homeless man isbrutally killed, investigators worry a community's fear ofgang retaliation will block their pursuit of justice.