CHICAGO (CBS) — Dennis Edwards, the lead singer of the Temptations, died from complications of meningitis, the Cook County Medical Examiner said Friday.

The manner of death was natural.

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Chicago police were investigating an allegation of domestic abuse filed just weeks before Edwards died.

Edwards, 74, died last month and he had been ill for months. He suffered a stroke last year in St. Louis, and had come to Chicago for rehab.

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Police said at the time that is was unclear whether Edwards’ death was connected to a domestic violence allegation. The report was filed on Jan. 8, and alleged Edwards was the victim of domestic violence in December.

CBS 2 Investigator Brad Edwards obtained the order of protection that alleged Edwards’ wife, Brenda, tried to suffocate him by holding his head facedown on a bed.

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“It’s untrue,” Brenda told CBS 2 at the time of Edwards’ death, further saying that there was “never” any abuse in their relationship.