Deletion of Henryk Siwiak homicide

Comment: Sources cited include international coverage in September 2001, follow up in October of that year, another follow up in January of the next year, and later a narrative of the story written for a crime journal. All of the sources feature the subject of this article. I see multiple writers, in several places, covering the story over a long period of time. This establishes 
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)

Comment: Subject covered by full size articles in the US and in Poland among other places. A serious mater, somewhat similar to the Robert Dziekański Taser incident in Canada as far as death of a new immigrant with English language difficulties is concerned. An unsolved mystery closely tied to world events under  mentioned in at least two books, by https://books.google.ca/books?id=1dApAQAAMAAJ&focus=searchwithinvolume&q=%22Henryk+Siwiak%22 Verena Lueken (Germany) and https://books.google.ca/books?id=iWAUDAAAQBAJ&q=Henryk+Siwiak Stryker & Parascandola (US
Stance: keep
Cited policy: Wikipedia:Notability (WP:GNG)