Spengler did not share the same closeness with his sister, with whom he shared his home, Vercruysse said.

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Mr Vercruysse said that Mr Spengler "loved his mama to death", adding that he "went crazy" after she died in October.

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Spengler was especially attentive to his mother, who passed away in October, Vercruysse said, visiting her every day in the nursing home where she lived until she died.

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