Warsaw, 4 March 1950. [Janusz Gumkowski], acting as a member of the Main Commission for the Investigation of German Crimes in Poland, interviewed the person named below, who testified as follows:
Forename and surname Jan Sypuła
| Date and place of birth | 25 March 1930, Rogówiec near Skierniewice |
| Names of parents | Józef and Jadwiga, née Stępniewska |
| Father’s occupation | laborer |
| State affiliation | Polish |
| Religious affiliation | Roman Catholic |
| Education | secondary |
| Occupation | electrotechnician-fitter |
| Place of residence | Warsaw, Zwycięzców Street 37a, flat 1 |
| Criminal record | none |
When the Warsaw Uprising broke out, I was at home at Zwycięzców Street 37a. I heard that on 12 August 1944 a German soldier, purportedly a Ukrainian, was cycling along Styki Street in the direction of Zwycięzców Street. A middle-aged woman, whose surname I do not know, was walking along Styki Street in the direction of Obrońców Street; she was the owner of the house at Styki Street 1. The German soldier stopped her and demanded that she give him some razor blades. Since she had none, he started kicking her. The woman fell over. The soldier kept on kicking her until she lost consciousness. I heard that he then entered Styki Street 1. There, he kicked to death an elderly woman, the mother of the owner of the house.
I do not know the details of this crime. These are known to the brother and son of the two women, who still resides at Styki Street 1.
Having committed these murders, the soldier burst into our house with a grenade in his hand. He demanded that we give him some razor blades or a straight razor. He received neither. A young girl who had been working in the field walked by carrying cucumbers; she was a resident of the neighboring house, no. 37. The German soldier approached her, and ordered her to sit on the frame of his bicycle and direct him to the field in order to pick a larger quantity of cucumbers. He took her to Francuska Street, where they ran into a patrol of German gendarmes, who regularly, every 15 minutes, drove around Saska Kępa in an armoured car. The patrol stopped the bicycle. In this way the girl, Krystyna Rudnicka (resident at Zwycięzców Street 37, flat 13), was saved. The patrol took the soldier and his bicycle with them.
When the German soldier entered our gate, I noticed that he was covered in blood. There was commotion in the street. When the German left with the girl on the frame of his bicycle, I ran to Styki Street, from where I and a few other men carried the woman whom he had kicked to the house no. 1; she died there a few hours later. Thus, on that day, i.e. 12 August 1944, two women were murdered in Styki Street.
It was said, and I heard this from many people, that the same German had broken into some flats in other streets in Saska Kępa and demanded gold.
I did not hear about any other crimes committed in Saska Kępa.
Around 25 August (I no longer remember the exact date), the Germans started displacing the residents of Saska Kępa. The women usually remained in their homes, but some came out voluntarily with their husbands or other family members. I did not go out; I hid. I worked at the trenches until the arrival of Soviet forces in Praga. After the front-line troops came to Saska Kępa, I was forced to work on the front line.
After the Uprising I learned from my brothers, and also other people, that the people taken around 25 August had been led by the Germans to the Eastern Railway Station, and from there they were transported to Pruszków. Many people ended up in the camp in Stutthof.
At this point the report was concluded and read out.