Vienna murder trial: "Dark Lord" confessed to death of law student Jennifer S.
The trial against Mairon K. begins on 27 August at Vienna Regional Criminal Court; he has confessed to strangling his ex-girlfriend in 2018.
Vienna murder trial: Ex-boyfriend confessed after nearly eight years
On Thursday, 27 August, the trial begins at Vienna Regional Criminal Court against Mairon K., a 33-year-old man from Lower Austria. According to Google News AT — Crime (de), he is accused of strangling Jennifer S., a law student who was 21 years old at the time, in her flat in Vienna-Brigittenau on 22 January 2018, and subsequently hiding her body. The presumption of innocence applies to the defendant.
Jennifer, known as Jenni by family and friends, had been reported missing since January 2018. On the evening before her disappearance, she was out with a friend; afterwards she asked her boyfriend at the time to pick her up. She was last seen alive at her residential address.
Ex-boyfriend early in investigators' sights
The ex-boyfriend came under scrutiny by authorities at that time. Jennifer had wanted to leave him. Nevertheless, key evidence was lacking for years — there was no body, although the flat had been intensively searched for traces.
In his subsequent confession, the defendant described strangling Jennifer during an argument in the flat. He initially placed her body in a crate and left it in the area around Großweikersdorf. When he feared that investigators could locate the hiding place through his mobile phone's location data, he moved the remains again — and finally concealed them at the edge of the Allentsteig military training ground in the Waldviertel region under branches and leaves.
Mother never let the case rest
For years, the Lower Austrian man denied any involvement in his ex-girlfriend's disappearance. Jennifer's mother, however, was convinced from the start that her daughter had not voluntarily disappeared. She organised search operations and even dug herself looking for possible traces.
The decisive turning point came via an unusual route: An acquaintance of the mother made contact with the suspect via a fake profile on a dating platform. What began as harmless conversations developed into chats and voice messages in which, according to investigators, the man spoke in detail about how to commit a "perfect murder" and make a body disappear.
These statements brought him back heavily into the authorities' sights. Following renewed interrogations, the man voluntarily reported to police in Waidhofen an der Thaya in December 2025, made a confession, and subsequently led investigators to the hiding place of the remains.
Name change with Tolkien reference
After the crime, the defendant changed his name and has since called himself Mairon K. — an allusion to Mairon, the original name of Sauron, the "dark lord" from J. R. R. Tolkien's "The Lord of the Rings". According to reports, his gardening company was also said to have borne a name derived from Sauron.
Psychiatric assessment and application for detention
In addition to the murder charge, the court is also examining the defendant's future dangerousness. According to previous reports, a psychiatric assessment concluded that Mairon K. should have been accountable at the time of the crime — at the same time, there is a high probability that he could commit serious offences again in future. The Vienna public prosecutor's office therefore additionally applied for his detention in a forensic therapeutic centre.
The 33-year-old is defended by criminal defence lawyer Astrid Wagner. The hearing is initially scheduled for two days. If convicted, he faces ten to twenty years' imprisonment or life imprisonment.
Source: Google News AT — Crime (de)