MUSKEGON, Mich. (WOOD) — The remaining 15 criminal charges against Jeffrey Willis, already convicted of two murders, have been dismissed.

He will not stand trial on kidnapping, assault and weapons charges linked to the attempted abduction of a teen girl in the spring of 2016 — the case that led to his arrest. Also dismissed were multiple counts of making child pornography, surveilling an unclothed person and using a computer to commit a crime that were filed after authorities said Willis recorded his underage neighbors.

>>Inside Complete coverage of the Jeffrey Willis investigation

He is already serving two life sentences without the possibility of parole for the murders of Jessica Heeringa and Rebekah Bletsch. Heeringa vanished from the Norton Shores gas station where she worked in the spring of 2013. Her body has never been found. Bletsch was shot and killed while jogging near her Dalton Township home in the summer of 2014.

Muskegon County Prosecutor D.J. Hilson told 24 Hour News 8 over the phone he filed the motion to dismiss the cases “in the interest of justice.” He said that considering Willis’ previous convictions, “there is no reason to give him another stage or platform. … He just needs to go away.”

Muskegon County Circuit Court Judge William Marietti, the same judge who presided over the Bletsch and Heeringa murder trials, granted Hilson’s request Tuesday.

Willis, 48, of Muskegon Township, is currently being held at the Bellamy Creek Correctional Facility in Ionia. He has maintained his innocence.