A trans-identified male and convicted pedophile is the prime suspect in the brutal murder of a young woman in the residential area of Rönninge, Sweden. Robin Andersson, 26, who recently began calling himself “Vilma,” was arrested on December 30 and detained under suspicion of murder and the gross desecration of a corpse.
Andersson had previously attempted to kidnap a 10-year-old girl in 2019 and was found in possession of over 42,000 files depicting child sexual abuse and graphic images of female corpses.
In the early hours of December 26, the young woman Andersson is believed to have abducted and murdered arrived at Rönninge station. Surveillance footage depicts her exiting the station, after which she was never seen alive again.
The young woman, identified only as “My” in reports, was a university student who was home visiting family for the holidays. Her family has requested privacy, and is asking members of media and the public to refrain from spreading the victim’s photo or personal details.
🔴 "Vilma" misstänks ha kidnappat och styckmördat kvinnan – greps när han grävde ned kroppsdelar
— Samnytt (@samhallsnytt) December 28, 2025
Försökte tidigare kidnappa 10-åring – fängslades i 1,5 år och fick skyddade personuppgifter.
Samnytt kan berätta att mannen har bytt till ett kvinnonamnhttps://t.co/TRbkEOOKxP
Suspecting Andersson’s involvement due to his criminal record, police were assigned to trail him for ten hours on the following day. According to news outlet Samnytt, law enforcement witnessed Andersson handling pieces of the woman’s body in a wooded area, where he was attempting to bury her corpse. Andersson is said to have killed and dismembered the woman, and there are reports that he hid additional body parts in a cabin in Södertälje.
In the area around the train station, My’s family discovered her headphones. In addition, a hammer, cable ties and traces of wires were also reportedly found.
Andersson, formerly known as Robin Säbb Hjerth, changed his name several times and most recently adopted a feminine first name, Vilma Andersson. Disturbingly, the name is remarkably similar to that of a 17 year-old Uddevalla girl who was found to have been murdered and dismembered by her boyfriend.
In 2019, Andersson was convicted of an attempted kidnapping and possession of child pornography and was sentenced to two years and four months in prison. But because Andersson was 19 at the time, his sentence fell under a “youth reduction” (ungdomsrabatt) policy that was standard in the Swedish legal system at that time, and he was released in just 18 months, according to Dagens Nyheter.
As a result of being convicted on charges related to pedophilia, Andersson applied for and was granted certain protections by the state under policies intended to “safeguard” individuals who face threats, violence, or other serious risks to their safety.
Information provided in news reports indicate that Andersson, due to being found guilty of crimes related to pedophilia, was registered by the state under the Protected Population Registration (Skyddad folkbokföring).
This measure involves the person living at an address other than where they actually live, which prevents their true location from appearing in public records. Therefore, it is likely that individuals residing in Rönninge were unaware of Andersson’s presence and criminal record, as he was previously living in Ekerö, about 40 kilometers away.
It was in Ekerö where Andersson targeted a 10 year-old girl. While wearing a black mask, Andersson, equipped with zip ties and duct tape, attempted to force the girl into his car. The child managed to escape, and during court proceedings Andersson described his pedocriminal behavior as a “cry for help.”
While under suspicion for the attempted abduction, a forensic investigation uncovered the significant quantity of graphic content in Andersson’s possession, which included both depictions of dead women and child sexual abuse.
The female corpses were also dismembered, as they were photographs from autopsy examinations. The convicted pedophile was also reportedly searching specifically for autopsy images of female genitalia.
Andersson’s internet search history showed that he was looking for information about drugging girls and disposing of their corpses. Investigators were able to track down certain internet searches he had made, such as: “Make someone unconscious,” “chloroform,” and searches for dead female bodies.
A forensic psychiatric examination conducted at the time determined that one of Andersson’s driving forces behind the attempted abduction was his “sexual interest in children and death,” adding that he “does not believe that the plaintiff has been harmed by the act and states that it is not clear that the children depicted in the abuse material feel bad about it.”
However, the report asserted that there were no signs that he suffered from a serious mental disorder. Most evidence, according to psychiatrists, indicated that he “acted in a calculating and purposeful manner during and after the acts.”
After completing an 18-month prison sentence, Andersson was released, and his address and background were withheld by the government. He was then able to legally change his name several times, and eventually settled on Vilma.
The murder of My has drawn national attention, and a fundraiser for her family has drawn in over 1 million kroner from more than 10,000 individuals.
While Andersson’s official documents continue to list him as male, it is likely that he will be permitted to change his legal status to “female” despite the nature of his crimes. In recent months, the Swedish government transferred a father convicted of murdering his two young children into a women’s prison after he claimed to identify as transgender.
Paulus Said Foukaih Abdelshahed, an Egyptian national who had been living in Sweden for almost two decades, is serving a life sentence for the killings.
SWEDEN: An Egyptian migrant convicted of murdering his two young children has been moved to a women's prison after changing his legal sex to "female."
— REDUXX (@reduxx) December 22, 2025
Paulus "Lily" Abdelshahed claimed he would not have committed the crime had he been born a woman.https://t.co/zKFeccJwH7
Court documents and subsequent reporting state that prosecutors determined Abdelshahed had placed bags over each child’s head and pumped helium into the bags through a hose, depriving them of oxygen. The prosecution described the killings as intentional, carefully planned, and particularly ruthless. Investigators recovered items from the home consistent with this method, including bags, tape, and gas-related equipment.
Abdelshahed admitted to killing the children during the investigation, an admission prosecutors cited alongside forensic findings and other physical evidence.
During the pre-trial phase, he underwent an initial psychiatric screening under Sweden’s Section 7 procedure, which is used to determine whether a full forensic psychiatric evaluation is necessary. According to Dagens Juridik, the preliminary assessment raised concerns about his mental state, prompting authorities to order a comprehensive psychiatric examination.
That examination ultimately concluded that Abdelshahed did not suffer from a serious mental disorder of the kind that would justify sentencing him to compulsory psychiatric care rather than prison.
According to TV4 Nyheterna, Abdelshahed applied to change his legal sex marker to “female” last fall, and his application was granted. He also changed his legal name to “Lily.” Shortly after, he was moved to an unnamed women’s prison.