war criminal Wilhelm Grudker

[ansata1976]

I am interested in more information about the trial and crimes of:

Wilhelm Grudker
27.06.1899
executed 14.07.1948 in Wroclaw

[ansata1976]

I found in a source the information: that Wilhelm Grudker(or Grutke) was executed for: "shooting of Soviet prisoners"

Was he prison guard or soldier or member SS/SA???

[ansata1976]

Or was he staff in Gross Rosen?

[ansata1976]

Wilhelm Grudker
27.06.1899 in Abendorf (district Kamienna Gora)
arrested 11.05.1946
death sentence 30.01.1948 in Wroclaw (Jelenia Gora) for shooting of Soviet prisoners
executed 14.07.1948 in Wroclaw

What was his function? Prison guard? Staff in Gross Rosen? Wehrmacht?