BANGOR, Maine (AP) – A Bangor, Maine man has been indicted on a charge of intentional or knowing murder in the death of a 19-year-old woman earlier this month.

The Bangor Daily News reports a Penobscot County grand jury indicted 34-year-old Colin Koehler on Monday. Holly Boutilier was found dead Aug. 9 in a makeshift shack along the Penobscot River. He’s being held without bail.

In a court affidavit, police spoke with two people Koehler’s ex-girlfriend and her boyfriend who both said he admitted in phone conversations to killing Boutilier