On August 12 or 13, 1942, on the evening of the first day of the month of Elul 1942, a group of Security Police and SD-men from Równe, with the assistance of the Gendarmerie (German rural order police) and Ukrainian auxliary police, entered the ghetto and ordered the Judenrat to assemble all those able-bodies inmates who had received work certificates, along with their families, at the square near the town's Great Synagogue, on the pretext that they were going to be taken to the town of Krzemieniec for work. According to one source, those who did not have work certificates were told that they would be taken to a concentration camp. After the Ukrainian auxiliary policemen, assisted by the Judenrat, had collected the Jews with work certificates outside the synagogue, they were taken under guard, by truck and on foot, 1 kilometer south-west of the town, to a site near Kruholets village, on the right bank of the Viliya [Neris] River, located about 700-800 meters beyond the Ukrainian cemetery. The remaining Jews of the ghetto, apparently those who did not have work certificates and who could not walk on their own (because they were ill and/or elderly), as well as those who had died on their way to the murder site, were loaded onto carts and taken to the same killing site. Upon their arrival, the victims, the first of which were members of the Judenrat, were forced to strip naked, mercilessly beaten, and then made to enter in groups a pit that had been prepared by some local residents. There, after being forced to lie facedown , they were shot to death with machine-guns in the back of the head by Pitsch, the chief of the Szumsk Gendarmerie. According to another source, after being stripped naked, the Jews were ordered to proceed, in groups, along a plank that had been placed over the pit. They were shot in the head by the chief of the Gendarmerie. According to the same source, each time after shooting to death several dozen Jews, the Germans ordered the Ukrainian auxiliary policemen who were guarding the murder site to pour chlorine over the bodies in the pit. A German report states that 1,792 Jews (496 men, 724 women, and 572 children) were shot to death during this murder operation, that lasted for two days. The clothes of the victims were taken back to the town, to the headquarters of the Ukrainian county administration. After this murder operation, local residents of the town and its surroundings had to cover the pits with earth. The Gebietskommissar (regional commissar) of Krzemieniec County Regierungsrat Fritz Müller organized and was in charge of this mass shooting.
During the following days local residents snuck into the ghetto and looted everything that they could lay their hands on, while the Germans took for themselves the best items from the ghetto. After that those Jews who had been caught hiding in the ghetto were handed over to the Germans and shot to death, individually and in groups, by the chief of the Gendarmerie, in the same way, at this murder site. Afterward, local residents were forced to cover with earth the pits containing the bodies of the victims. Apparently in late August or early September, several hundred more Jews who had been caught in hiding were put into the town prison. Soon afterward, during a selection that was carried out at the site, a group of about 100 Jews was left alive to help clean up the ghetto and sort the remaining possessions, while the sick, the elderly, and children were taken to the Vilia River bank and shot to death there. The landwirte (a local German official of Szumsk) Obernauer, and, afterward, Alfred Gekker ,who succeeded him, participated in all the mass shootings.
One day in the mid-September of 1942, early in the morning, Germans and Ukrainian auxiliary police came to the synagogue located in the former ghetto where a group of about 100 Jewish workers was being held and carried out another selection, during which those Jews who by that time had left their hideouts and surruptitiously joined the Jewish workers, were taken, guarded by the Ukrainian auxiliary police, to the same murder site and shot to death. Some Jews who tried to resist on their way to the shooting site were killed on the spot. One day, apparently between the end of September and October 1, 1942, the Germans again entered the ghetto, and, during a final selection, chose 15 specialists to work at carpentry, tailoring, etc., while the rest of the Jews were taken out and shot to death on the bank of the Vilia River.