Wisconsin police arrested a man who allegedly shot and killed his 2-year-old daughter’s mother. He’s the prime suspect in the toddler’s ongoing disappearance.

On Wednesday, Milwaukee police announced the arrest of Dariaz Higgins, 34, and a second person for harboring and aiding a fugitive. Higgins is accused of fatally shooting his daughter’s mother, Sierra Robinson, 24, and wounding a second woman in Milwaukee before fleeing the scene with their daughter, according to WITI.

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The toddler, Noelani Robinson, remains the focus of an AMBER Alert following Monday’s shooting.

While Milwaukee police said they’re investigating tips that Noelani is in Michigan, Ann Arbor police told WXYZ that, as of Thursday morning, they don’t believe it’s the case.

This is an ongoing investigation. Anyone with information regarding Noelani Robinson’s whereabouts should call the Milwaukee Police Department at 414-935-7302.

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[Featured Image: Noelani Robinson, Dariaz Higgins/Milwaukee Police Department]