The Murder of Rabbi Abraham Grünbaum

Who Abraham Grünbaum was

Abraham Grünbaum was born in 1930 in a small town in Poland. During the Second World War he and his brother survived a Soviet labour camp in Siberia, while their parents were murdered by the Nazis. After the war he spent time in the Zeilsheim camp for displaced persons near Frankfurt and emigrated to Israel in 1952. He studied at the Ponevezh yeshiva in Bnei Brak, was ordained as a rabbi and founded a kollel, an institute for Talmud study. He lived near Tel Aviv and was the father of a large family.

For close to three decades he travelled to European cities, Zurich among them, to raise money for his Talmud school and for needy families in Jerusalem. In Zurich's Jewish community he was a familiar visitor. His son later described a man who allowed himself almost nothing personal and was driven by his fundraising mission.

The evening of 7 June 2001

On 7 June 2001 the 70-year-old rabbi was walking through Zurich's Aussersihl district, heading to evening prayers. He had last been seen at the synagogue on Freigutstrasse and was expected at another synagogue on Erikastrasse, where an acquaintance was waiting for him. For reasons that remain unclear, he took a detour. Shortly after 10 p.m., near Hallwylplatz, he was shot from close range. Residents heard two shots and saw a man running away. Grünbaum died of his wounds, and the attacker escaped.

Robbery was quickly ruled out. The rabbi was still carrying around 1,000 Swiss francs in donations, and nothing appeared to have been taken. Investigators also excluded a personal or relationship-related motive at an early stage.

The investigation

Zurich police opened a homicide inquiry and soon arrested a suspect, but he was released the following week; according to later reporting he had an alibi, and police said he had no connection to the crime. There were no direct eyewitnesses to the shooting itself. Despite intensive work, the inquiry produced no firm leads, and an appeal on the television programme Aktenzeichen XY ... ungelöst brought no useful tips.

The question of motive was sensitive from the start. Police said at the time that they had no evidence of racial hatred. Werner Rom, then president of Zurich's Jewish community, said an antisemitic attack could not be excluded and pointed to earlier attacks on Jews in the city. The rabbi's son, Mordechai, told an Israeli newspaper that he could see no explanation other than that his father was Jewish. The killing took place during the second Intifada, a period of heightened tension, which some observers saw as relevant context, though no one claimed responsibility.

The NSU question

In late 2011 the National Socialist Underground (NSU), a German neo-Nazi cell responsible for a series of murders, was exposed. Because the Zurich shooting resembled the group's methods, occurred during a period of NSU killings in Germany, and the group was reported to have contacts with Swiss right-wing extremists, the case was re-examined for a possible link. Swiss police said at the time only that they routinely compare such cases. In December 2017 the German federal government told the Bundestag that the NSU investigations had produced no evidence that the cell's members took part in the Grünbaum killing.

Current status

No one has been charged. In 2024 Swiss public broadcaster SRF reported that the Zurich prosecutor's proceedings had been suspended because there were no new leads, and that an antisemitic motive was suspected but unproven, with no suspect identified. The case was marked by a memorial gathering at the scene on its twentieth anniversary in June 2021. Under the 30-year limitation period that currently applies to murder in Switzerland, the killing would become time-barred in 2031.

Why the case matters

The Grünbaum case is one of the few unsolved killings in Switzerland in which a hate motive against Jews has been seriously discussed, and it shows how carefully investigators and media must separate a plausible motive from a proven one. It has also become part of a wider Swiss debate about cold cases. Following a 2019 cantonal initiative from St. Gallen, the Council of States voted in March 2025 to end the limitation period for murder, and the National Council backed the principle in March 2026. On 16 September 2026 the Council of States confirmed that murder should no longer become time-barred, but the change still required a final vote in both chambers and was not yet law at that point. SRF reported that the rabbi's killing is among the unsolved cases that would be affected if the reform is enacted, meaning it could remain open to prosecution beyond 2031.