The First 48 Presents: Critical Minutes

A man is mysteriously found shot and dumped on a street in Oklahoma and homicide investigators must act quickly to reach the truth.

A young father goes out partying but ends up getting murdered at a nightclub. Everyone seemingly has an idea of what took place... but nobody is talking.

Surveillance video leads detectives to an unlikely suspect after a man is gunned down while walking his dogs in a quiet park.

In Alabama, one teenager ends up dead and another's life is changed forever when a single decision turns fatal.

In Alabama, one teenager ends up dead and another's life is changed forever when a single decision turns fatal.

For homicide detectives, the clock starts ticking the moment they are called. Their chance of solving a case is cut in half if they don't get a lead in the first 48 hours.

The lives of five young people are left in tatters when a scheme to make quick money goes disastrously awry.

One man is killed while another is injured, as a dispute over a stolen marijuana plant turns deadly.

When a teenager is found shot and dumped in the street, detectives struggle to figure out who he is and where he was killed.

In Georgia, a man celebrating his 21st birthday is shot dead at a house party.

Tulsa detectives go to Texas to track down their suspects.

When a man is found shot to death in the back of his truck, detectives hope a dating app is the key to finding his killer.

In Gwinnett County, a veteran and a rookie detective untangle a web of lies as they work to solve a young woman's mysterious death.

When a man is shot on the side of the road, clues lead Detective Jason White to an ongoing crime spree, in his 100th case for Tulsa Homicide.

In Gwinnett County, a beloved special education teacher is gunned down in broad daylight when the suspects' plan to score some easy money spins out of control.

A man living at an extended-stay hotel is shot dead in his room after a night of gambling with friends turns into more than anyone bargained for. In Mobile, a young woman helps a friend in need and pays the ultimate price.

Desperate to stop the senseless shootings in her community, Detective Kenyata "KeeKee" Taylor must find out why the latest teen victim was wearing a ski mask when he was killed.

After a 14-year-old boy is shot to death outside of a friend's house, detectives wonder if he was caught in the middle of a sinister plot.

When a house fire turns out to be a triple murder involving a 7-year-old girl, Tulsa Homicide takes it personally.

Streets of Pain: A visit to Mobile ends in tragedy when a violent chain reaction leads to the death of a teenage girl.