Helene Pruszynski was a 21-year-old college student whose life was tragically cut short when she was found murdered in 1979. Despite an extensive investigation, her killer remained at large for nearly forty years. Dateline NBC’s episode “A Promise to Helene” chronicles the case and its eventual resolution.

The episode begins by introducing the viewer to Helene and her family, who were left devastated by her murder. The case was complex and there were no leads for decades. It wasn’t until a new detective took over the case and employed an innovative approach that the killer was finally identified. The detective used the latest in DNA technology to match the suspect’s DNA with the evidence from the crime scene.

The episode follows the detectives as they work to solve the case, and also examines the impact of Helene’s murder on her family and friends. It’s a story of justice, perseverance and hope. The episode is a testament to the dedication of the investigators and shows the power of the latest forensic technology to solve cases that once seemed unsolvable.

The episode was rated 7,00 from 14 votes.

Dateline NBC's episode "Tallahassee Trap" follows the case of a Florida law professor who was murdered in his garage. Host Dennis Murphy dives into the case, presenting new details and evidence, as well as bombshell testimony from the long-awaited trial.

Murphy interviews the detectives and witnesses involved in the investigation, providing viewers with an in-depth look into the case. He also provides insight into the crime scene, examining the evidence and examining the motives behind the murder. Through his interviews and analysis, Murphy paints a vivid picture of the mystery and the events leading up to the tragedy.

The episode was rated 7,40 from 15 votes.

The Dateline NBC episode “Trouble at the 7-11 Ranch” follows the story of a missing Colorado rancher and his friends’ relentless search for answers. Josh Mankiewicz reports the story of how rancher Robert Wallace suddenly disappeared one day without a trace. Wallace’s friends become suspicious of foul play and are determined to find out what happened.

The show takes viewers on an emotional journey as Wallace’s friends embark on a mission to uncover the truth. They soon discover Wallace’s ranch is more than it appears to be and find evidence that he may have been involved in some shady business dealings. As the story unfolds, it becomes increasingly clear that the mystery of Wallace’s disappearance goes far deeper than anyone could have imagined. The episode is a gripping investigation of truth, justice, and the law.

The episode was rated 7,46 from 28 votes.

The episode "Left for Dead" from Dateline NBC tells the story of a young woman who is the victim of a brutal attack, and the detectives who work to find the suspect. The episode follows the detectives as they try to track down the perpetrator, but when they finally find a suspect, the victim is convinced that they have the wrong man. Host Keith Morrison brings viewers along on the journey of the detectives as they work to find the true perpetrator, and ultimately get justice for the victim.

The episode highlights the detective's tenacity and dedication to the case, and the lengths they will go to in order to get justice. It also shows how difficult it can be to get the right suspect in a case, and how the victim's conviction can sometimes be just as important as the evidence. Through interviews with the victim, the detectives, and the suspect, the episode creates a compelling story that will keep viewers invested until the very end.

The episode was rated 7,52 from 21 votes.

LaJoya McCoy, a mother of two, had suddenly gone missing, leaving her friends and family in a state of shock. When police arrived at her apartment, they were met with a crime scene. As detectives began to investigate, LaJoya's friends and family revealed that she had been fearful of being stalked. Dateline NBC explored this story through Josh Mankiewicz's reporting from Monrovia, California.

The episode, "The Dead of Night," highlighted the lengths police, family, and friends go to in order to solve a missing person case. Through interviews and compelling footage, Josh Mankiewicz was able to uncover the details of LaJoya's disappearance and delve into her life story. He also delved into the dangers of stalking and the importance of safety for all individuals.

The episode was rated 7,60 from 15 votes.

The eleventh episode of Dateline NBC’s twenty-fourth season, Lone Star Obsession, re-examines the unsolved murder of an esteemed doctor in Texas. Dr. James Willenborg’s murder shocked the entire community, as he was a beloved and respected figure. Initially, investigators were stumped as to who would want him dead, and the case went cold for many years. However, a re-investigation of the case has revealed simmering jealousies and a love triangle that may have been the motive for the crime.

In the episode, viewers will be taken through the journey of how police were able to piece together the clues and build a case against the suspects. Andrea Canning will provide the latest developments and interviews with key players involved in the crime. Despite the passage of time, the mystery of Dr. Willenborg’s death remains unsolved, and this episode of Dateline NBC aims to bring closure to the case and justice to the family of the victim.

The episode was rated 7,67 from 12 votes.