Convinced: After three decades on the force, Gary Police Captain was in no doubt: He told MailOnline: 'Everyone of us who was there that day in the basement and who saw what we saw, went through what we went through after…we all think the same, we all call it the same. That bit of dirt is a portal to hell'
Anna Ecklund - 1912-1928 - Earling, Iowa
Anna was just 14 when she was allegedly cursed by her father and aunt - and soon she was unable to be near religious artifacts or churches. She underwent an exorcism in 1912, but her father and aunt then prayed for Satan to visit her again.
In 1928, she asked the church for help and was put in a convent. But when nuns came near her she would hiss at them, speak in foreign languages and levitate. After three more exorcisms, she was declared free of the demons.
Roland Doe - 1940s - Cottage City, Maryland
Doe - known as the inspiration behind the Hollywood film, The Exorcist - was 14 when his aunt encouraged him to use a Ouija board in the 1940s. When she died, he might have tried to contact her this way and it is believed this gave demons the chance to reach him.
When he was possessed, religious artifacts began flying off the walls and people could hear footsteps and dripping inside his home. Scratches also began appearing over his body, which levitated and contorted. His family contacted a Catholic priest and an exorcism was performed more than 30 times, sometimes injuring the priest before they were eventually successful. Doe went on to have a normal life, according to reports.
Anneliese Michel - 1973 - Germany
Anneliese was a 16-year-old Bavarian girl who had suffered with epilepsy and mental illness. In 1973, she began to hear voices, drink her own urine and became intolerant of religious symbols. She begged her family to take her to a priest to rid her of demons. Two local priests secretly agreed and performed nearly 70 exorcisms (each lasting up to four hours) in 10 months - but her parents stopped treating her health issues, and she died from emaciation and starvation. The film The Exorcism of Emily Rose is loosely based on her life.
Michael Taylor - 1974 - Yorkshire, England
Taylor was a married Christian who was accused by his wife, Christine, of having an affair with a prayer group leader. He responded with anger and continued to act erratically, leading some people to think he was possessed by evil.
He eventually underwent an exorcism that last for more than 24 hours and priests believed it to be successful. They warned that a demon may still be inside of him. When he went home, he murdered his wife and was later found wandering the streets. He was found not guilty in her murder by reason of insanity.