Summary: Three cases from The First 48 that feature families enveloped in personal tragedies. In New Orleans, two cousins have a deadly fight, in Memphis, a young couple disappear and their uncle's home holds a clue, and in Dallas, a woman brutally turns on her sister-in-law.

Summary: Three different approaches to suspect interviews are featured from The First 48. First, detectives in Cleveland sit down with friends and the suspect in the murder of a young mother, then the boyfriend of a missing woman is questioned in Harris County with hopes of finding the woman alive, and detectives in Memphis change strategy in an effort to get their murder suspect to talk.

Summary: Three cases from The First 48 where things get out of control in a heated moment. In Birmingham, a man's body is found burned after an argument with a friend; in New Orleans, a man with cancer gets a ride home that ends in his murder; and in Tulsa, a man visiting his son is killed in a jealous rage.

Summary: A look back at three cases from The First 48 where forensics played a pivotal role in solving homicides. In Harris County, detectives rely on fingerprints to solve a father's carjacking and murder. In Charlotte, NC, a slain woman's family finds justice through DNA; and in Minneapolis, ballistics is the key to solving a man shot during a street fight.

Summary: When there are no witnesses, homicide detectives face an uphill climb to find the truth. First, detectives in Cincinnati come across a bizarre homicide at an apartment fire. Then, in Memphis, solving a preacher’s murder hinges on a single fingerprint. And a Tulsa woman found dead leaves police a clue that might solve her own murder.

Summary: Three cases from The First 48 that were driven by revenge and resentment. In Mobile, a man is executed in a parking lot months after an altercation; in Harris County, TX, pressing charges in an attempted robbery leads to a man’s brutal murder; and in Tulsa, a gang member goes on the hunt after being called a name.

Summary: Three stories from The First 48 where a plan proved deadly for unwitting victims. In Dallas, a man is lured to his death in an abandoned apartment; a homeless man in Miami is brutally beaten with a rock; and a Tulsa woman’s plan to help her sister goes horribly wrong.

Summary: Three stories from The First 48 where a plan proved deadly for unwitting victims. In Dallas, a man is lured to his death in an abandoned apartment; a homeless man in Miami is brutally beaten with a rock; and a Tulsa woman’s plan to help her sister goes horribly wrong.