The Dutch Forensic Institute (NFI) has found two DNA matches in a cold case investigation into the murder of sex worker Betty Szabó in 2009, according to the Parool.

Researchers said they expect to be able to identify the two people quickly, and police have urged them to come forward. Both are believed to have been clients of Szabó, who was stabbed dozens of times in a brothel on the Achterburgwal in central Amsterdam.

DNA material preserved at the time has now produced matches thanks to new forensic techniques.

Police are also searching for a specific pair of shoes that left bloody prints in the room where Szabó was murdered, and will release photos of the prints to the public, the paper said.

In addition, they want to trace a man known as “Simon,” who was working in the brothel at the time of the killing. His whereabouts are currently unknown.

At the end of 2024 police used a hologram of the sex worker sitting in a red light window to try and jog peoples’ memories. That project generated dozens of tips.

“She was a young girl, just 19, who met a terrible death,” said Anne Dreijer-Heemskerk from the cold case team at the time.

“She did not have an easy time of it before she died either. She worked long days as a sex worker and kept on working right up to the birth of her son. He was taken in by a foster family and never knew his mother.”

A €30,000 reward has also been offered for information that leads to an arrest. “Two-thirds of these sort of cases are solved because of the media attention,” Dreijer-Heemskerk said.