When two women die suddenly under mysterious circumstances, authorities initially suspect suicide. But both of their families believe it was murder, and are trying to figure out who is responsible.

A mother of two and a young woman planning a career in science both die under mysterious circumstances, and two families embark on quests for justice.

The murder-suicide of a mother and son may be something entirely different.

A family suspects foul play when their son drowns in a few inches of water.

A rookie police officer is heard confronting someone with a gun and is shot in the back of the head, but the D.A. believes it's suicide. And when a Navy veteran is discovered with wounds all over his body, police oddly think he died of pneumonia.

He seems like a great partner. But when Susan Osborne and her 14-year-old son Evan disappear, it turns out "Mr. Right" has a secret. Then, when a young man is shot in a street confrontation, all clues point to one man. Could this case be that simple?

A young woman's body is found 200 miles from home, and a retired police detective uses his podcast to crowd-source the search for her killer. And, when a young mother disappears, an old answering machine message could hold the key to finding her murderer.

Someone snatches a baby boy from his crib, and a young mom goes missing.

A 14-year-old boy vanishes, but neighbors don't tell police what they know.

A young woman on a trip to her father's homeland goes missing, then turns up brutally murdered. Another young mother and her baby are shot as they drive along a highway.

Officers discover a high school senior's strangled body in flames weeks before graduation.

A bride-to-be vanishes weeks before her wedding. Suspicion swirls around her fiancé and ex-boyfriend, before a shocking revelation about a coworker makes him the main person of interest. Then, the mysterious death of a young trans woman.

A college student sends his sister a mysterious text about leaving the country. Later, his body turns up in a lake, weighed down by a backpack full of rocks. A young woman vanishes after trying to make a call from a payphone.

A young woman acts erratically at a restaurant and police take her into custody. They release her in the middle of the night(—)and she disappears. A soldier at Fort Hood dies after falling off a balcony. Was it an accident, suicide or murder?

The families of two young mothers who die in suspicious circumstances search for answers. Racheyl Brinson's husband says she fell to her death while hunting, while Jessica Alva's boyfriend tells police that she hung herself.

Sisters seek justice for their siblings - but the truth might be deadly.

Home becomes the most dangerous place on earth for two lovely young women.

A man and his dog burn to death. A chase ends in murder for a motorist.

The callously dismembered body of a missing woman turns up in trash bags.

They are the victims of shootings that seem senseless. Who would want them dead? Did these two young people get tangled up with the wrong crowds? And will anyone be held accountable for their murders?

Two young women are savagely murdered. One has gone fishing only to turn up beaten and drowned, and the other is a pregnant mother attacked while on the job delivering newspapers. Are strangers responsible, or are the culprits much closer to home?

A war veteran turns up dead, and a missing man leaves a creepy voicemail.

A man relocates only to be stabbed. A student is found dead in her car.

Their evenings begin as fun celebrations with friends but they end in murder. With disturbing evidence, terrifying theories, and demands for justice, can the mystery of how two young partygoers are murdered be solved?

Two young women who dream of big success as television anchors are just embarking on their careers when their plans come to a violent end. They are murdered in their own apartments and there are no signs of forced entry. Did they know their killers?