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Authorities in Michigan have opened an investigation into John Geddert, a former U.S. gymnastics coach and former associate of Larry Nassar, the physician sentenced to life in prison for molesting gymnasts, NBC News reports.

Geddert was the head coach of the 2012 Olympics team—nicknamed “the Fierce Five”—which included Aly Raisman, Gabby Douglas, McKayla Maroney, Kyla Ross, and Jordyn Wieber. Raisman, Douglas, and Maroney all have accused Nassar of molesting them. In the past, Geddert claimed that he had “zero knowledge” of the abuse Nassar was inflicting upon his victims; Geddert was suspended by USA Gymnastics in January for a “pending matter.”

Some of Nassar’s victims also mentioned Geddert in their testimony, saying that he created a “toxic atmosphere” at Twistars, the gymnastics club in Michigan where Nassar and Geddert worked. Many of the women who gave victim impact statements at the Nassar trial described a stomach-churning, perhaps unintentional alliance, between the two men: after Geddert would allegedly physically abuse them in training, Nassar would show up under the guise of providing treatment and earning their trust.

Geddert’s attorney did not provide a statement on the new investigation.