The world of true crime is full of baffling puzzles, and today we dive into 10 mysteries involving families that have left investigators scratching their heads for decades. From vanished beauty queens to chilling double murders, each case is a haunting reminder that tragedy can strike any household.
10 Mysteries Involving Families: The Unsolved Cases
10. Allison And Marie-Josee Benitez
On July 14, 2013, 19‑year‑old beauty queen Allison Benitez and her mother vanished from Perpignan, France, after an argument with Allison’s father, Francisco Benitez. Francisco, a former French Foreign Legion member, told friends that the women had headed to Toulouse and would stay off their phones, yet he never informed the estranged wife’s family. Their friends, alarmed, reported them missing before Francisco did, waiting over a week to file a report.
Contrary to Francisco’s story, the women never used their car, and CCTV at the train station showed no train travel. Suspicion shifted to Francisco, whose former mistress, Simone de Oliveira Alves, disappeared in 2004 after a breakup. No phone or card activity was detected after the disappearance, and four weeks later Francisco hanged himself, leaving a suicide note and video claiming he couldn’t bear the accusations. Blood traces belonging to Allison were later found in Francisco’s freezer and washing machine, both cleaned after the incident. No further trace of the two women has ever emerged.
9. Cowden Family
On September 1, 1974, Richard and Belinda Cowden were camping with their two young sons in California’s Siskiyou Mountains. They were expected to meet Belinda’s mother for dinner, but when they didn’t appear, the mother discovered cash, an expensive wallet, and a baby’s diaper bag at the campsite. With no sign of the family, police were alerted, yet an exhaustive search yielded nothing.
Eight months later, two hunters uncovered the entire family’s remains hidden deep in the woods. All but Richard had clear gunshot wounds, but no firearm was recovered at the scene. Richard’s cause of death remained undetermined, and police do not view him as the killer.
Progress has stalled, though detectives have a suspect: Dwain Lee Little, incarcerated for another crime, was in the area during the disappearance. Little was on parole for a 16‑year‑old’s rape and murder and owned a gun matching the one used on the Cowdens. Detective Dee Davis says justice won’t be served until Little is proven guilty, yet investigative mishaps may prevent resolution.
8. Jividen-Adams Murders
In May 2014, Brandon Jividen vanished alongside his girlfriend Rebecca Adams and her daughters Michelle (3) and Jaracca (5). Their Alaska home, located merely 0.8 km from where the bodies were later found, showed no sign of disturbance. The family dog’s remains were also discovered at the site.
Evidence was scarce, limited to two handguns and five shell casings. Police reported both firearms were purchased by Brandon, whose body was found wearing two holsters, though only one serial number matched. With no clear motive, authorities classified the incident as a murder‑suicide, closing the case in June 2015.
7. Godard Family
On September 1, 1999, Dr. Yves Godard set sail from Caen, France, on a rented yacht with his wife Marie‑France, six‑year‑old daughter Camille, and four‑year‑old son Marius. The family car was left at Saint‑Malo’s port, and investigators later found traces of Marie‑France’s blood. Prior to departure, Yves and Marie‑France reportedly argued, with Yves suspecting an affair, prompting police to consider foul play.
In the days following their disappearance, the yacht was sighted multiple times, and fragments such as a life jacket, dinghy, and lifeboat washed ashore around the English Channel. Anonymous letters claimed Yves had been seen with the children on the Isle of Man and later the Scottish Isle of Lewis, though these tips were never verified and may have been self‑authored to mislead investigators.
January 2000 saw a family bag caught in a fishing net, and later that year fishermen retrieved a skull identified as Camille’s. Another skull was found and inexplicably tossed back into the water. Police suspect Yves staged a shipwreck, murdering his family before fleeing. In 2006, Yves’s femur and tibia were recovered from the Channel’s depths, deepening the mystery.
6. Barbara And Patricia Grimes
On December 28, 1956, 15‑year‑old Barbara and 13‑year‑old Patricia Grimes of Cook County, Illinois, went to see Elvis Presley’s film Love Me Tender. They were supposed to meet their brother and sister at a bus stop after the movie, but never returned. A massive search ensued, even featuring Elvis himself urging the girls to come home, as authorities initially thought they might have run away.
On January 22, 1957, their naked bodies were found in the snow near an isolated road close to Bridewell Prison. The coroner determined they died the day of the film. A homeless man briefly confessed to the murders, but later withdrew, claiming coercion. Police dismissed him as a suspect.
Shortly after, the girls’ mother, Loretta, received an anonymous call from a man claiming responsibility and revealing private details. The following year, another teen, 15‑year‑old Bonnie Leigh Scott, was murdered under similar circumstances, and Loretta received another call from the same voice. Bonnie’s case was solved, but no link was established to the Grimes murders. Despite a 99‑year sentence, Bonnie’s killer was released after 11 years, died in 2010, and the Grimes case remains cold.
5. Dupont De Ligonnes Murders
On April 21, 2011, French police uncovered the bodies of Agnes Dupont de Ligonnes and her four children (ages 13‑18) buried beneath their home’s terrace. The family’s two dogs were also shot, likely while asleep. Their father, Xavier, a descendant of French nobility, was missing, having been last seen leaving a hotel with a rifle on April 15.
In December 2010, Xavier began frequenting a firing range and wrote to his children’s schools announcing an imminent departure from the country. He also claimed to be a spy entering witness protection. Financial strain forced him to borrow money from his mistress, adding motive speculation.
Despite extensive investigation, Xavier’s whereabouts remain unknown. In July 2015, police received a handwritten note from him stating, “I am still alive.” No further developments have surfaced since.
4. Ade Family
On the night of March 23, 1897, Justice Simpson of Paradise Ridge, Tennessee, noticed his neighbors’ house engulfed in flames. Unable to assist because the structure was already collapsing, Simpson rallied other neighbors as the blaze spread. Rain eventually doused the fire, revealing the interior.
Inside lay the bodies of Jacob Ade (60), Pauline Ade (50), Lizzie Ade (20), Henry Ade (13), and ten‑year‑old Rosa Moirer, a neighbor and family friend. An accidental fire theory was quickly dismissed, and robbery was considered, yet a missing portion of Rosa’s head and hand, plus cash found, shifted suspicion toward a calculated murder with arson to conceal evidence. No motives or suspects have ever been identified, and the case went cold.
3. Sarah And Jacob Hoggle
On September 7, 2014, Catherine Hoggle took her two‑year‑old son Jacob and three‑year‑old daughter Sarah to visit her mother in Montgomery County, Maryland. Later that day, she told their father, Troy, that she had dropped Jacob off at a friend’s house. The next morning, Troy awoke to discover Sarah missing, and Catherine claimed she was at daycare.
As Troy grew increasingly worried, Catherine, who has a history of serious mental health issues, could not recall which daycare her daughter attended. When authorities were involved, Catherine fled but was found wandering in a nearby town four days later and taken into custody. She claimed the children were left with a friend but refused further details.
A massive manhunt ensued without results. The investigation shifted to homicide, and Catherine faced two counts of neglect and abduction. Due to her mental health, she has repeatedly been deemed unfit for trial. Police suspect the children were murdered, yet family members hope they may still be alive, possibly given away by Catherine. No clues have emerged.
2. Edward Wheeler Hall And Eleanor Reinhardt Mills
On September 16, 1922, a couple strolling in New Jersey stumbled upon the bodies of Edward Wheeler Hall and Eleanor Reinhardt Mills, arranged to appear as a loving tableau under an apple tree—her hand on his knee, his arm around her shoulder. Closer inspection revealed murder: Edward suffered a single gunshot, a hat placed over his face to mimic a nap; Eleanor endured three gunshots and a brutal slash across her neck, with her larynx and tongue removed, concealed by a blood‑stained scarf.
Scattered torn love letters indicated an affair between the pastor and choir singer. Suspects included the couple who discovered them, Edward’s wife and brothers‑in‑law, and even the Ku Klux Klan. Police mishandled the scene, allowing a crowd to mishandle Edward’s business card, destroying potential fingerprint evidence.
Despite extensive witness testimony—157 witnesses were called—the grand jury declined to charge anyone, leaving the case unsolved.
1. Donna And Richard Muller
On January 19, 2014, police responded to a Philadelphia home where Donna Muller, 49, and her 22‑year‑old son Richard were found dead, each shot once in the head with a semi‑automatic pistol—Donna in the hallway, Richard in a bedroom. No signs of forced entry or robbery were evident, and the family dog showed no reaction to the intruder.
Investigators determined a lone shooter was responsible and recovered DNA at the scene. Two primary theories emerged: a tragic case of mistaken identity, or a connection to a series of nearby killings. Days later, a 32‑year‑old man was shot to death in his car; in early February, three men were shot dead at a nearby home, two of whom were tied up, suggesting a different modus operandi involving drug‑related violence.
Police have offered a $40,000 reward for information, yet no leads have surfaced.