Richard Johansson was under the influence of drugs when he attacked the 32-year-old on September 30th last year, who he had previously been in contact with via a dating app, according to court documents seen by The Local.

He had been kicked out of his home by his roommate, who he had threatened with a machete two days earlier. Johansson contacted the woman to ask if he could stay with her, and she agreed.

According to the Aftonbladet tabloid, the woman had sent messages to friends asking for help just after 7am the morning of her death. Two arrived, where they met Johansson and began to film him while he confessed to her murder. Police and ambulance services were called to the scene where the woman was found dead in her apartment.

Johansson told police during the interrogation that he had felt the need to brutally murder the woman as he was convinced that she was a “zombie” and was worried she would come back to life. He strangled her, as well as stabbing and bludgeoning her with a knife, iron and skis.

A forensic psychiatric examination deemed him to be suffering from a “serious mental disorder” at the time of the murder, but not at the time of the examination.

He was sentenced to 18 years for four crimes in total: murder, unlawfully threatening his roommate, as well as two narcotics offences for both possession and being under the influence of drugs.

Johansson has also been ordered to pay damages to the victim’s mother, as well as compensation to cover the cost of transporting the victim’s body to India.

The woman’s mother told Indian media at the time of the murder that she last spoke to her daughter, her only child, on September 29th, the day before she was killed.

“I am alone and aged now,” she told Telegraph India. “I have lost my only reason to live.”