Suspect in Milwaukie murder arrested by WSP following Washington crash

News Release from: Clackamas Co. Sheriff's Office

Posted: Monday, Nov. 28, 2016, 2:19 p.m. p.m.


Please reference CCSO Case # 16-32525

CCSO Case # 16-32525 - Crime SceneAt approximately 7:30 p.m. on November 27, 2016, Clackamas County Sheriff's Office deputies responded to a reported shooting at a residence at 13614 SE River Rd., outside of Milwaukie in unincorporated Clackamas County.  

When deputies arrived, they found a deceased female -- identified as Melissa Elaine Vargas, 53, of Gaston -- with a gunshot wound to the back of the neck.  

Deputies were able to speak with Debra S. Kusch-Siegberg, 61, of Milwaukie, who lived at the residence. She told them that her ex-husband -- Gregory R. Siegberg, 62, of Milwaukie, who also lived at the residence -- came downstairs and shot Ms. Vargas one time. He then reportedly shot multiple times  at his ex-wife as she ran from the residence to a neighbor's house, where she called 911.  

Mr. Siegberg fled the scene in his vehicle -- a 2015 Subaru -- before deputies arrived.

Sheriff's Office detectives, the Oregon State Police Crime Lab and the Clackamas County Major Crimes Team responded to process the crime scene and conduct interviews.

A short time later, at approximately 8:40 p.m., Sheriff's Office investigators were notified by the Washington State Patrol (WSP) that Mr. Siegberg was in custody as a result of a traffic crash. WSP troopers had responded to a report of a car overturned on I-5 near Ridgefield, WA. They arrested Siegberg on a DUII charge and he was transported to a local hospital, where he was evaluated and then booked into Clark County Jail; he then reportedly told Washington troopers about the Milwaukie homicide.

Sheriff's Office detectives responded to Washington State -- where, with the help of the Washington State Patrol, they were able to confirm Mr. Siegberg's identity and interview him.  

The deceased, Ms. Vargas, was an acquaintance of Mr. Siegberg and Ms. Kusch-Siegberg, but was not a relative.  

Ms. Vargas' family has been notified of her death, and the Oregon State Medical Examiner's Office has completed its autopsy.
Mr. Siegberg is currently in custody in Clark County Jail in Washington on a temporary warrant for the murder of Ms. Vargas and the attempted aggravated murder of Ms. Kusch-Siegberg. Mr. Siegberg will make his first court appearance in Washington this afternoon (Monday, Nov. 28).


Anyone with information on Gregory R. Siegberg and/or the homicide investigation is urged to contact the Sheriff's Office Tip Line. Tips can be sent by phone at 503-723-4949 or by using the online email form -- please reference CCSO Case # 16-32525.


News-release archive

Contact Info:
Sergeant Brian Jensen
Office of Public Information
Clackamas County Sheriff's Office