# Iwona Wieczorek cold case investigation

> Live situation record from CLSTR: https://clstr.news/situations/iwona-wieczorek-cold-case-investigation
> Updated: 2026-09-13T05:56:33.000Z. Sources: 2. Developments: 2.

Investigators from the ‘Archiwum X’ (Cold Case Division) have reported a breakthrough regarding the 2010 disappearance of 19-year-old Iwona Wieczorek. Wieczorek vanished near Reagan Park in Gdańsk while returning from an event in Sopot.

Eryk Stasielak, head of the unit, stated that new evidence has emerged concerning the specific time and location where Wieczorek was in the park on the night she disappeared. While the exact nature of this evidence has not been disclosed, it is noted that the information does not stem from witness testimony.

## Timeline

### 2026-09-13: Lucyna Kaczmarska: Unsolved 2002 murder case in Poland

The 2002 murder of 17-year-old Lucyna Kaczmarska near Iłża, Poland, remains unsolved despite various leads involving missing witnesses and unexamined evidence.

2 sources. https://clstr.news/cluster/lucyna-kaczmarska-unsolved-2002-murder-case-in-poland

### 2026-08-19: Iwona Wieczorek disappearance: Investigators report breakthrough

Polish cold case investigators report a breakthrough in the 16-year-old disappearance of Iwona Wieczorek, citing new evidence regarding her location on the night she vanished in 2010.

2 sources. https://clstr.news/cluster/iwona-wieczorek-disappearance-investigators-report-breakthrough

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Cite as: Iwona Wieczorek cold case investigation. CLSTR, https://clstr.news/situations/iwona-wieczorek-cold-case-investigation