Presumably attacked on 23 march 1959, on the Moerser Straße in Rheinwiesen/Rheinhausen
23-year-old homeless.
She was spotted by Kroll in a tavern in the old part of Duisburg, and invited for a walk. Suddenly he hit her with his fist, and started strangling her. She lost consciousness, and when she woke up, Kroll had disappeared.
The police recorded a number of similar incidents at the time.