It was taught in the mishna: With regard to one upon whom a rockslide fell, and there is uncertainty whether he is there under the debris or whether he is not there; and there is uncertainty whether he is still alive or whether he is dead; and there is uncertainty whether the person under the debris is a gentile or whether he is Jew, one clears the pile from atop him.
For those interested https://honenu.org/ is an organization that defends these types of victims of the Shabak.
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This blog post is located at https://vilnagaon.org/shabak/
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