Unsolved Mysteries Volume 3: Mystery at Mike Marker 45 deals with the 2015 mysterious death of high school graduate and athlete, Tiffany Valiante. In the Netflix episode, her mother described Tiffany as,
"Tiffany was just always beautiful, always bright, always energetic. She got a scholarship to play volleyball. She was gonna be a middle starter. She wanted things in life. We were all very proud of her."
In the summer of 2015, the sudden and violent death of Tiffany Valiante sent shockwaves throughout the New Jersey community. Tiffany's body was found on the railway tracks near the Mike Marker 45 on July 12, 2015. Her death was ruled a su**** by the investigators within hours. Her mother recalled the unfortunate event
"That night she was found approximately four miles away from our house where she was hit by that train. New Jersey transit put it out there that my daughter committed su****. There's absolutely no way. I want to know what happened to my daughter."
Tiffany's family members recalled the day they celebrated her cousin's graduation ceremony. It was Sunday, and Tiffany was in a jolly mood throughout. That was until her friend accused her of using her credit card, Tiffany's mom returned to the house and confronted Tiffany about the act. She accepted her mistake but soon left the house around 9:28 P.M. After a frantic search by her family, her body was found on the railway tracks by her uncle, Micahel Valiante, around midnight when he located some police authorities near the transit.
But nearly a decade later, many, including her family, had questions about her sudden death – was it merely a suicide or a well-planned murder?
The Netflix reboot of Unsolved Mysteries revisits Tiffany Valiante's case in an episode titled 'Mystery at Mile Marker 45', unearthing new claims and suspicious evidence that challenge the final hours of Tiffany's life. Even after a decade, the case raises several questions, often indicating foul play.
Here's what we know about the case
Unsolved Mysteries Volume 3 Episode 1: Did the authorities rush the investigation of Tiffany Valiante's death?

There was a lot of confusion surrounding Tiffany's death. Investigators from the New Jersey Transit Police were quick to conclude she had taken her own life, but the evidence did not point to this claim. There were several loops that the investigators had chosen to ignore.
For instance, an axe was found near the train track with red marks. Even though Tiffany's uncle submitted the evidence to the police, they misplaced it – intentionally or unintentionally.
Other items, including Tiffany's shoes, headband, and phone, were found scattered across a wide area far away from the accident site. Her scent was traced along a wooded trail by the search dogs but as the weather was rainy, the trails accuracy were not accurate.
A towel that was found nearby was tested by Tiffany's family, and it was found that it contained a man's DNA. Surprisingly, even after so much evidence that indicated towards foul play, the investigators did not proceed with what the evidence might have suggested.
Unsolved Mysteries Volume 3 Episode 1: Was Tiffany Valiante su****al? Or there's more to the story?

Tiffany Valiante's death was declared a su**** because she was upset for being accused of stealing her friend's credit card. However, her family stated that the incident was minor, and Tiffany was looking forward to going to college. She even received a sports scholarship and had her entire future traced out.
The Valiante family was sure that it was not su**** but a murder. But things took a drastic turn when reports from Tiffany's school counselors stated that she was abused by her mother, which prompted them to inform the CPS in 2014. Could family tensions be a reason for her death?
On the night Tiffany died, her walk was captured by a deer camera. The last time Tinnay was seen alive was when she was spotted walking down the driveway at 9:28 pm on July 12, 2015. Interestingly, the jean shorts she was wearing that night were never recovered, and there were no witnesses who could state what happened after.
Years have passed, but the Valiante family hasn't stopped fighting for their daughter. They continue to call for the case to be reopened, insisting that too many questions remain unanswered. The Unsolved Mysteries episode amplified their voices, sparking petitions, online protests, and renewed public pressure on the New Jersey department to investigate the case.
Was Tiffany Valiante's death truly a su**** or a cover-up for something grittier?
Unsolved Mysteries Volume 3 Episode 1: Mystery at Mile Marker 45 is available to stream on Netflix.
Also read: Unsolved Mysteries: Top 10 solved cases from the Netflix show
Also read: Is there any case from Netflix's Unsolved Mysteries reboot that has been solved?