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A missing person investigation in Washington state has escalated into a homicide probe after human remains were discovered on military property, leading to the arrest of two people, including an active-duty service member.

The investigation began on June 12, when the Tacoma Police Department received a missing person report for local resident Caelick Bradley, 28, who was last seen June 8, according to Washington State Patrol.

Tacoma detectives soon discovered an unauthorized person was actively using Bradley's credit card, which led them to a suspect identified as Humberto Rodriguez Hernandez.

During police questioning, Hernandez provided details about a murder that took place on Addision Street SW in the neighboring city of Lakewood, Lakewood Police Department (LPD) officials told Fox News Digital.

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Caelick Bradley was last seen near Joint Base Lewis-McChord on June 8. (Washington State Patrol)

He subsequently led detectives to human remains in a publicly accessible training area on Joint Base Lewis-McChord (JBLM) property near Spanaway, Washington.

Authorities said Hernandez also implicated a second suspect, Aydee Casado-Dominguez, who was later detained outside her home.

FILE - The main flagpole in front of the U.S. Army I Corps headquarters on Joint Base Lewis-McChord, south of Tacoma, Washington, hangs at half-staff, Wednesday, Dec. 5, 2018. (Ted S. Warren, File)

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Both Hernandez and Casado-Dominguez have been charged with homicide and booked into the Pierce County Jail, LPD officials said.

In a statement provided to Fox News Digital, Joint Base Lewis-McChord confirmed the discovery of the remains and revealed that one of the two suspects taken into custody by the Tacoma Police Department is a service member currently assigned to JBLM.

The Army Criminal Investigation Division is now working closely with both the Tacoma and Lakewood police departments on the ongoing investigation.

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While the remains were found following the investigation into Bradley's disappearance, official identification and the cause of death are pending an examination by the Pierce County Medical Examinerโ€™s Office.

The exact date of the homicide remains unclear.

Alexandra Koch is a Fox News Digital Editor, with a focus on high-impact events that shape national conversation.

She has covered major national crises, including the L.A. wildfires, Potomac and Hudson River aviation disasters, Boulder terror attack, and Texas Hill Country floods.

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