Uni-Phantom
The University Phantom of Bochum, shortened to the Uni-Phantom, is a German serial sex offender who is said to have committed up to 21 assaults, first in Ennepe-Ruhr-Kreis and later moving to Bochum. The first act was committed in 1994 at Sprockhövel, with the last rape assigned to him occurring in December 2002. Assaults and perpetrator profile. The Phantom's first victim was a 12-year-old student from Sprockhövel. She was raped on January 7, 1994 at 1:10 PM, on her way home from in school in a wooded area. In September 1994, the  perpetrator struck for the second time in Sprockhövel, sexually abusing a 44-year-old. He continued with the assaults around the area until June 1996, when he attacked in Bochum for the first time. From then on, the preyed mostly on young women in the vicinity of the Ruhr University Bochum, continuing until 2002. In 2003, another victim of the rapist came forward, with her assault occurring in August 2001. All of the rapes were determined to have been committed by the same perpetrator, after DNA analysis of semen traces. The detailed police investigations have led to various findings over  the years. Early sketches of the Phantom showed the culprit as a middle-aged man, slim and with a mustache. He committed all his acts while disguised, dressed in all black and with a baseball cap. The police assumed based on statements that the offender likely has good local knowledge of the Sprockhövel area. It's assumed that he lives or lived there, and could possibly have family ties. All of the crime scenes were in the area of public transport stops, where the Phantom may have met his victims. He chose young women as victims, as they usually have  a different recreational behavior than older women, and also use public transport at night. In the vicinity of the university, there were many student residences, and thus, many young women - this is considered the main reason for the Phantom relocating from Sprockhövel to Bochum. He used a knife to threaten his victims. Strikingly, there were intervals between the rapes - it never passed more than half a year before the next rape. The first series can be limited to the period of 1994 to 1997, with the last assault being committed on November 18, 1997. Subsequently, he struck again after almost  three years, in the summer of 2000. Another assault followed in August 2000, before he paused yet again. The next known case is dated from August 2001, with another rape series taking place between summer and December 2002. On December 1, 2002, he committed his last known rape. Since then, the Phantom has not struck again, leaving many questions unanswered. Investigation of the Messer Commission. The serial offender, baptized "The Uni-Phantom" by the press, was the subject of a large-scale manhunt by the Bochum police. After his last assault in 2002, in Bochum, up to 40 civil servants  spent months working on potential crime scenes. The investigating Messer Commission (shortened to EK Messer) included at times up to 20 officers, including a profiler from Scotland Yard. Students and employees of the Ruhr University, as well as men from Sprockhövel and Bochum were asked for saliva samples, a strongly criticized move, especially by some students. A law student who refused such a sample appealed to the Federal Constitutional Court, but in vain. Despite this, the 10,000 samples collected by the profilers proved unsuccessful. The Bochum police turned the course of investigative work to work with the ZDF, and a  review of the rape series was broadcast as part of the "Aktenzeichen XY… ungelöst" programme. Even after many years, evidence still reaches the police in Bochum, with the investigation still persisting.