"Why didn't we get this guy? I ended up with a bleeding ulcer over this case. It still haunts me. It always will."
"The Disappearance of 14-year-old Misty Copsey is one of the saddest cold cases I've ever come across."
"The disappearance of Jared Negrette, a 13-year-old boy scout who has not been seen since July 19, 1991."
"The Babushka lady's identity remains one of history's unsolved mysteries."
"For 65 years the story of America's unknown child has haunted this community."
"The Voynich Manuscript: written in a language that has not been deciphered to this day."
"For all intents and purposes, the man who called himself Dan Cooper had successfully completed his criminal operation before he disappeared into thin air."
"It's still the deadliest, unsolved mystery in the history of the Navy."
"No charges were brought against anyone in Jimmy Hoffa’s disappearance, which brings us to the question that kept the mystery alive for 40 years, where is Jimmy Hoffa?"
"The mysteries behind the Bermuda Triangle may never be solved."
"That's crazy! In 2006, CCTV video shows an Ohio student on spring break named Brian Schaefer going up an escalator to go into a bar."
"A case with many theories, but no definitive answers."
"No one will ever know how Arvin Nelson disappeared in the Ventana Wilderness without a single trace."
"We never found any more of the second woman other than that leg."
"Natasha Teasley was the one to announce that Mostly Harmless' identity had finally come up with a match."
"Her case remains unsolved... just very, very strange."
"The murder of Kelly Moriarty and the disappearance of Doris Carter will remain open, unsolved, and growing cold."
"Who directly killed the judges and why they were killed may have been resolved inconclusively."
"Many have speculated as to what happened to Hoffa, with the most popular theory being his mafia connections led to his demise."
"The mystery of the Beale Ciphers remains unsolved, leaving treasure hunters and cryptographers alike scratching their heads."
"The mystery of what happened to Madeline McCann is one that is still on people's minds 16 years later."
"Perhaps the biggest unanswered question of this entire mystery is what the hell happened to Marine Kelly."
"He risked his life to hijack the airliner. He didn't get to spend the money. He may have lost his life."
"The still unsolved case of the incident at Dyatlov Pass might as well be a readymade premise for a horror movie."
"Her family still seeks answers on what really happened that day."
"A popular and well-liked woman, Erica seemed to fit in well. It was a devastating shock to all when she turned up dead."
"The disappearance of Joseph Balderas is one of the most mystifying and frustrating cases."
"Nobody really knows what happened to Raul other than that he was most likely murdered by the Russians."
"The disappearance of Annie McCarrick in 1993 is an unsolved mystery with two strange sightings that could lead investigators to what happened to the 27-year-old just before she vanished."
"Don't you just love it when a murder happens in your backyard and nobody knows who did it?" - Aiden Mattis
"In February of 1957, something very strange was discovered across the street from a home for Wayward girls." - Aiden Mattis
"The body of a young boy between four and six years old was found in a box wrapped in a blanket just sitting there on the side of the road." - Aiden Mattis
"He had bruises all over, a few lacerations, and just was generally in pretty bad shape." - Aiden Mattis
"He formulated a theory that perhaps the boy in the Box was an illegitimate child of either Arthur Nicoletti or Anna Marie Nagel." - Aiden Mattis
"What makes his case so strange is the circumstances in which he was found and the complete lack of evidence as to what happened to him."
"The murder of Suzanne Jovin remains unsolved."
"Number one: This is the mysterious disappearance of Lori Ann Murchison Dunbar put bleached blonde hair and a dimple in her cheek that showed when she smiled..."
"Life goes on after Brandon Lawson's disappearance but questions remain."
"The disappearance of Joan Risch is one of the strangest and most bizarre disappearances."
"The Sodder Children Disappearance: their house caught fire and the bodies of the children were never found."
"The knowledge that it might never be solved only salivates our curiosity."
"Many believe this case will never be solved and the killer of JonBenet Ramsey will never be found."
"The D.B. Cooper Case: One of the greatest unsolved mysteries in American history."
"If it's not solved in the first two days, it's very likely that this is going to be a cold case forever."
"The woman known as Orange Socks Jane Doe remained unidentified for 40 years, and while her case was connected to infamous serial killer Henry Lee Lucas, it now remains unsolved."
"Despite the storied legacy of Muhammad Ali, it seems the mystery of whether outside figures influenced the 1965 fight between Sonny Liston and Muhammad Ali will remain unsolved."
"Did Gloria Ramirez really die of hospital neglect and possibly something worse going on?"
"He always seemed confident that he would never be found."
"The infamous Zodiac case remaining unsolved and capturing imaginations of the public for over half a century."
"Who was the zodiac in the decades following his murders over 2,500 suspects have been investigated yet none of them have ever been arrested or charged with anything."
"The death of Tupac Shakur is one of the biggest mysteries in hip-hop."
"What happened to them remains one of the greatest mysteries of all time."
"It was a senseless attack, and why nothing from the house was stolen."
"Despite this case technically being closed and the investigation now over it's still very much alive here in the online world where people continue to question what exactly happened to who."
"The nine hikers died as a result of an unknown compelling force."
"Chances are we might never really know, but I guess that's what makes this mystery so exciting."
"This mind-blowing medieval book has been bamboozling cryptologists for over 600 years."
"Jodi Huisentruit was an American TV news anchor in Mason City Iowa who disappeared in the early morning on June 27 1995."
"This chilling image was captured... the hikers vanished completely and they were never found again."
"Most investigators believe that there's someone out there who knows the person that committed this terrible crime."
"Elisa Lam: A tragic tale of mental health and mystery."
"It's particularly terrifying to think that there was no apparent motive for these tragic deaths."
"Whatever answers he had in this case, it seems Robert took to his grave."
"For over 20 years the crime remains unsolved."
"The case remains unsolved to this day and all new leads are considered."
"How did Butch shoot six different people in four different rooms on two different floors of an old house with creaky stairs without waking anyone up?"
"Investigators seem no closer to unraveling the mystery of the Christmas Tree Lady."
"If it's a code, no one can break it. If it's a language, no one can understand."
"The Somerton Man's mystery serves as a testament to human fascination with the unknown and the persistent search for truth."
"No one had ever found Ralphie, and after a while, people had stopped talking about it too."
"After finally taking matters into their own hands, the mysterious murder involving a whole town of vigilantes that went unsolved for the last 40 years was such a bizarre story of vigilantism that they ended up number one on our list today."
"Theories surrounding the incident span even farther and wider."
"The Circleville Letters mystery is yet to be irrefutably solved."
"They simply can't piece together a motive... robbery couldn't be the motive... nothing was stolen."
"On that morning in 1987, 20-year-old Jay Cook and his 18-year-old girlfriend, Tanya van Cuylenborg, set off from Victoria, BC, for what was supposed to be an overnight trip to Seattle, Washington."
"25 years went by and it was with much certainty to the police and probably even to Christopher's family that this was it they would never get the answers they so desperately needed."
"The big mystery of the case is what happened between midnight and 4 am on August the 23rd."
"The murder of Tupac Shakur remains unsolved."
"To this day, the murder of Vera Page remains unsolved, with no one ever being formally charged for the crime."
"The case of Crystal Rogers is one of Bargetown's five unsolved murders."
"...and so at least for now, FBOTs are going to stay as a new mystery that at the moment nobody can solve."
"There was DNA found on JonBenet's long johns and underwear, both belonging to a single unidentified man who, when compared to the FBI's database of convicted violent offenders in 2004, was not found among 1.5 million samples."
"All those years ago, the fact is the phantom killer was never caught and likely never will be."
"Grab a drink, my choice today is English breakfast tea, and join me as we explore the unsolved mystery Iceberg."
"This mystery remains unsolved and with each passing year it seems ever more unlikely that we'll ever find out what happened to the couple."
"Tragically, the disappearance of Daniel Robinson remains unsolved, and in its wake remains a father who refuses to give up the search, who continues to comb the Sonoran desert for his son."
"...the frustrating truth is that we just don't know, and in our opinion, it makes the police sketch of the man all the more haunting."
"The mystery of how this car managed to pass through a wire fence and elude the police cruisers remains unsolved to this day."
"We've gathered here today on the 30th anniversary of Inga Maria Hauser. We of course support the appeal by the police for those people who may know something about her murder to come forward."
"Just another forgotten man... well, that forgotten man remains in the minds of strangers all around the world who have heard his case and have delved into its rabbit hole."
"Wendy has never been officially linked to the murder of her ex-husband."
"Despite being shot in broad daylight in front of a small army of police and lawyers, the murder of Ray Chuck Bennett remains unsolved today."
"Questions remain about who committed the crime. Was Melanie rightfully convicted, or were there crucial details missed?"
"The mystery of Michael Lius's disappearance remains unsolved, a narrative lost to the echoes of the Grand Canyon."
"It's a mystery that is talked about to this day."
"With red eyes and breath of blue flame, he tears at his victims with metal claws, then vanishes into the night, and nearly two centuries later, the mystery remains unsolved."
"This ensued one of the greatest mysteries on Lake Erie, that has not been solved to this day 112 years later."
"The Philosopher's Stone disappeared mysteriously during said war, becoming the biggest unsolved mystery in God's domain."
"The truth behind the alarming and frankly disgusting bathtub of brains may never be solved."
"The Lost Colony of Roanoke is one of the oldest unsolved mysteries from America."
"It's been 10 years now and there still is no lead as to who could have done this terrible deed."
"The case remains one of the biggest Unsolved Mysteries in Atlanta's history."
"The true mystery behind these strange stone statues will likely never be solved."
"How could an entire village go missing without a trace?"
"This question remains one of the greatest unsolved mysteries of the past."
"He was frustrated with how the investigation was handled."
"This is one of Australia's biggest unsolved cases."
"Their stories are nearly identical, besides the location, the time period, and the fact that Laura's fictional murder was eventually solved and Hazel's never was."
"In the end, even if Teresita's voice never spoke from beyond the grave, the alleged paranormal connections ultimately prevented her murderer from joining the legion of cases that have gone cold and remain unsolved."
"This is a fascinating story of old Hollywood, with plenty of suspects and theories to explore, still unsolved nearly a hundred years later."
"Maybe we don't find them, but we're bringing a light and awareness to the case itself."
"As of today, Lynn has never been found, and this case remains unsolved."
"The case is still open to this day, so if anyone watching this has any information regarding Antoinette's disappearance, please come forward."
"The reason I think this story has captivated people's imagination for a couple hundred years now is the fact that one, it remains unsolved; two, we have this almost heroic figure who is somehow regal because he's treated very well."
"The unsolved deaths of Gilbert Bogle and Margaret Chandler remain one of the most chilling yet fascinating cases in Australian history."