Between 1977 and 1984, Cameron and Janice Hooker kept Colleen Stan inside a wooden box under their bed, only taking her out to torture her.When Cameron Hooker was a teenager, his family noticed that he became increasingly withdrawn and they started to become concerned. But they could never have guessed what he would turn out to be. Decades later, in fact, a California judge deemed Cameron Hooker “the worst psychopath I have ever dealt with.

Cotard delusion sounds like a silly disease, but feeling like you're dead and like your body isn't your own is no laughing matter.PixabayThose who suffer from Cotard delusion believe that they are dead and their flesh is rotting — even when they’re in perfectly good health. In 1880, a woman known to posterity as “Mademoiselle X” visited French doctor Jules Cotard. She complained of feelings of anxiety, despair, and a more serious symptom: she believed she was dead.

In June 1969, Dennis Lloyd Martin walked off to play a prank on his dad and never returned, sparking the largest search effort in the history of Great Smoky Mountains National Park.Family Photo/Knoxville News Sentinel ArchiveDennis Martin was just six years old when he vanished without a trace in the Great Smoky Mountains National National Park in 1969. On June 13, 1969, William Martin brought his two sons, Douglas and Dennis Martin, and his father, Clyde, on a camping trip.

Finney the Jack Russell terrier was safely reunited with her family following her astonishing rescue. Facebook/Colorado Missing Person OrganizationRich Moore was 71 years old and described as an “experienced hiker.” The loyalty of man’s best friend should never be underestimated. On August 19, 71-year-old Rich Moore left his home in Pagosa Springs, Colorado, with his loyal Jack Russell terrier, Finney. Moore planned to summit Blackhead Peak, which towers 12,500 feet above sea level and requires an “extremely rigorous” hike to reach the top.

The Bhopal disaster remains the world's most devastating industrial disaster, with people feeling the effects for decades after the tragedy struck. Sandro Tucci/Liaison/ Getty ImagesDead bodies from the Bhopal disaster. In the early hours of December 3, 1984, the sleepy residents of Bhopal, India began to cough. Soon, their eyes began to water as they gasped for air. Within moments, they were vomiting. Within hours, thousands were dead. The cause of their symptoms was a chemical leak of deadly methyl isocyanate, or MIC, from the nearby Union Carbide pesticide plant.