A man has been arrested after a 91-year-old man was killed and his 100-year-old wife injured in a Brooklyn home invasion, sources said Friday.

Waldiman, 91, was killed and his wife Ethline, 100, was injured after a home invasion in Brooklyn

Dwayne Blackwood, 27, of Elton Street, Brooklyn, is charged with second-degree murder in the Wednesday, Oct. 11 robbery that left one man dead on Decatur Street in Bedford-Stuyvesant, according to police sources.

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