Dateline on ID

Special education teacher Frank Rodriguez is a U.S. Navy veteran with few enemies, then he dies under mysterious circumstances, leaving investigators with the challenge of figuring out how he died and who would want him dead.

After Lisa Knoefel is stabbed to death, her teenage foster daughter, Sabrina Zunich, admits to killing her, but the case grows infinitely more complicated when Lisa's husband, Kevin, is implicated in the crime.

After car salesman Eric Somuah is found shot to death in his bed, a dogged detective refuses to give up on the investigation into his murder which is filled with twists and turns.

Defense attorney Chiquita Tate's promising career comes to a violent end when she is murdered, and police are faced with a challenge since Tate came into contact with so many miscreants.

Successful real estate appraiser Marc Despain is found shot to death on the kitchen floor of his Arkansas home, and investigators speculate as to whether money is the motive for his murder.

In Texas, matriarch Bonnie Harkey has a steely grip on her family's pecan fortune, then she goes missing, and investigators must shake the family tree to find a twisted tale of greed and murder.

In Florida, Lynn Friend is making plans to marry her fiancé when she vanishes into thin air; investigators search land and sea, going to unexpected depths to get to the bottom of her mysterious disappearance.

A seemingly healthy doctor collapses at home and is rushed to the emergency room, where a blood test reveals she has been the victim of cyanide poisoning, turning a medical mystery into a murder mystery.

A doctor fights for his life after being poisoned, and police uncover more than one suspect while looking into the women in the victim's life and must ask themselves which one is toxic.

After Jennifer Ramsaran goes missing, detectives suspect she may have been harmed by someone she met online, then they realize the answer to her disappearance may lie closer to home.

In Miami, Cindy Carballo's husband is shot to death while walking with their baby boy in his arms, then, a short time later, Carballo kills her late husband's business partner.

After a college freshman is beaten to death, identifying the victim will turn out to be more difficult than finding the killer, who confesses to committing the crime for a reason that will later become the foundation for his defense.

Police discover a chilling connection between two victims and race to connect the dots to see if they have a serial killer on their hands.

After a bizarre murder case goes cold, investigators get a DNA hit but cannot figure out the link between the victim and her suspected killer who are separated by 1,5000 miles.

After Diane Kyne is murdered in her bed, investigators are shocked by 911 calls made by her husband and son, both to them pointing fingers at each other.

A 33-year-old tutor is accused of having an illicit relationship with a teenage student after a racy photograph is discovered on a cell phone; later, her stunning defense will lead to an emotional courtroom battle.

In Southern California, a nurse is butchered in a murder so savage it haunts detectives for more than three decades.

In Southern California, a nurse is butchered in a murder so savage it haunts detectives for more than three decades.

After baby Savanna vanishes during a custody battle, her father is driven to find out what happened to her; the mystery of her disappearance spans two decades and circles the globe.

Respected psychology professor Patricia Esparza believes she has escaped from a life of poverty and abuse, until a dark secret comes back to haunt her as the result of a determined investigator's work on a 20-year-old murder case.

After the brutal murder of a wealthy socialite, police zero in on a suspect but solving this crime will not be easy or quick.

Leslie Neulander, the philanthropic wife to a respected local physician, dies from a fall in the shower, stunning the community.

Vern Holbrook has a beautiful family and a thriving real estate company, then he fails to show up for a meeting with his daughter-in-law, leading to concern over the whereabouts of the beloved patriarch.

After real estate developer Gary Triano is murdered in a car bomb explosion at a resort, there are multiple suspects, including Triano's ex-wife, and it will take investigators nearly two decades to unravel the mystery of who killed him.

There are multiple suspects after real estate developer Gary Triano is murdered in a car bomb explosion, and it will take investigators nearly two decades to unravel the mystery of who killed him.

The 1990 stabbing death of a tourist in New York City led to a crackdown on crime, but one of the men arrested in the stabbing continues to maintain his innocence.

Retiree Ray Kotomski quenches his thirst with a cool drink on a warm August day in Pennsylvania, then he dies within hours, and investigators have to figure out whether a crime has been committed.

Richard and Stacey Schoeck meet in a secluded spot for a secret tryst on Valentines Day, then Richard is shot dead turning the isolated spot into a crime scene.

A teenager is found dead the morning after inviting a friend to sleep over in her basement.

A Texas doctor re-invents himself after a divorce, then he is shot to death in his home.

What happened one spring night at an elite New England preparatory school leads to an accusation of sexual assault and an investigation into who is telling the truth.

While members of the U.S. military prize loyalty, a female commander's murder comes about as the result of a breathtaking betrayal.

In California, police strive to discover who would have wanted to murder a devoted family man.

A couple is found murdered among the collectibles they amassed in their home; investigators want to know who stood the most from killing them and whether there is a connection between the memorabilia and their murders.

Twenty-nine-year old Carrie Olson has a new man in her life and is looking forward to the future, then she goes missing, and no one can imagine anyone wanting to harm her.

The morning after a cast party, 19-year-old musician and actress Jessie Blodgett is found strangled to death in her bed.

Sabine Buehler moves to an island off Florida seeking her own slice of paradise, then she vanishes, leading police down a long and winding path in the sand as they investigate her disappearance.