On Aug. 10, a Kent County Circuit Court jury found 27-year-old Pedro Navarro guilty of first-degree murder in the death of Aiyana Cisneros. Judge James Redford sentenced Navarro Tuesday.
Navarro was arrested earlier this year. Police said he was the boyfriend of Samantha Winkler, who pleaded guilty in 2005 to second-degree murder in Aiyana's death.
Winkler was sentenced to up to 60 years in prison in the death of Aiyana, who had blunt force injuries to her chest and abdomen.
Police said newly discovered witnesses and evidence led to the charge against Navarro.