The First 48 Presents Critical Minutes Show Summary, Upcoming Episodes and TV Guide

Investigators look into the deaths of two men who were brutally attacked with a hammer while they were asleep; a detective hopes to solve a triple homicide; a detective ventures into the world of homelessness to find a killer.

Three cases from The First 48 archive that explore how money can lead to deadly fallouts. In Harris County, a Navy veteran is killed after coming home to a burglary in progress. In Mobile, a mother vanishes on a trip to the casino. And in Dallas, a man is brutally murdered with a hammer.

Critical Minutes looks at three cases from The First 48 that take place in the brutal underworld of illegal drugs. In Tulsa, a homeless dealer is ambushed on a dark trail. In Cincinnati, an elderly man is strangled in his apartment. And a parking lot drug deal in Atlanta turns into a shootout that leaves two men dead.

Examines three cases where homicides were committed in the name of love. First, in Dallas, a couple is shot to death on their doorstep, and detectives have to track down the killer as he goes on a multi-state crime spree. Then, in Louisville, a hearing-impaired man is stabbed in his doorway. And finally in Tulsa, a woman's body is found in a trash can. Can her death be linked to the murder of her fiance the year before?

Three cases from The First 48 with puzzling motives. In Tulsa, a woman is brutally attacked as payback for someone else, then, in Dallas, a barber is gunned down by someone who greets him as a friend. And finally, in Atlanta, a man sticks up for a friend and becomes the target.

Three haunting cases from The First 48 archive that stuck with investigators long after the arrest. In Memphis, a woman is dragged to her death in broad daylight, then, in Harris County, a young mother is found with her throat slashed, and finally, in Miami, an ongoing battle between two gangs feels impossible to curtail as the body count rises.

Friendship is usually a good thing--but when it goes bad, it can be fatal. Detectives in Atlanta find a woman's body in a trashcan; in Louisville, a domestic dispute turns into a homicide investigation; in Birmingham, doing a favor for a friend costs one man his life.

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.

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.

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.

In Cleveland, a family is torn apart when a beloved uncle is killed by his own flesh and blood. Then, in Tulsa, when a young man disappears and is believed to be dead, detectives face a family's code of silence. And in Mobile, Detective Rogers is shocked when he arrives at a crime scene to find one of his own relatives is the victim.

In Atlanta, Detective Summer Benton investigates a deadly dispute between roommates; in Rochester, Investigator Terry Dearcop breaks open the case of a husband's murder; and in Birmingham, Detective Cynthia Morrow must sort through varying versions of how a drug deal went bad.

This episode looks back at three cases that stayed with detectives. In Dallas, a man is dismembered and burned and dumped in a lake. Then, in Tulsa, two kids find their mother dead in her car. And in Dallas, two friends are found burned in a car.

In Tucson, when a homeless woman is brutally gutted under a highway underpass, the suspect's motive haunts investigators. And in Tulsa, the shooting of a man in an apartment sets off a chain of events unlike anything Tulsa Homicide has ever seen.

In Kansas City, when detectives discovered two women in an abandoned garage, they had no idea how big the case would turn out to be. In Dallas, investigators used a surprising clue to bring their killers to justice. And in Miami, one marina is linked to two murders that share a shocking connection.

Looks back at three cases solved, because they were caught on camera. In Tulsa, multiple cameras help crack open a case. Then, in Atlanta, a key witness provides a crucial lead after seeing surveillance footage of the suspect on the news. And in another Tulsa case, detectives watch in horror as a hit and run driver targets homeless people. They race to stop him before he kills again.

Three of The First 48's most memorable cases featuring surveillance video are highlighted: in Cleveland, Ohio a robbery leaves an innocent man dead at the shop where he worked; in Dallas, an encounter on an elevator seals the shocking fate of a woman heading home for the day; and in Memphis, revenge is served in video surveillance that tells a misleading story.

In Tulsa, a shooting in a motel parking lot leads investigators to undertake an undercover operation to capture the suspect. In Dallas, after a man was stabbed to death in his own apartment, detectives take advantage of a love triangle to bring the suspect in. And in Tulsa, the investigation into the shooting of a former Marine leads to a dangerous car chase and apprehension.

In Atlanta, the gruesome rape and murder of two women in an abandoned house haunts investigators. In New Orleans, detectives embark on a sprawling investigation to identify the suspects who drowned a local couple. And in Harris County, TX, a woman who was burned alive fights to survive, so she can identify her assailants.

In Tulsa, a key witness denies knowing anything about a brutal homicide until confronted with evidence that proves otherwise. In Dallas, a suspect shocks detectives with a confession they didn't see coming. In Atlanta, Detective Quinn has an uphill battle in the interview room with a suspect who appears to be targeting and killing homeless people.