The following timeline is being provided as part of the ongoing criminal investigation and to help generate tips from the public.
Date Event
July 01, 1999 Mark Dribin is last seen alive.
July 6, 1999 Mark Dribin is reported missing to the Portland Police Bureau.
July 18, 1999 Mark Dribin’s vehicle is located in Southeast Portland.
Summer of 1999 An unknown suspect’s DNA is recovered from Mark Dribin’s house and vehicle.
August 11, 2000 The Oregon State Medical Examiner’s Office issues a presumptive death certificate for Mark Dribin. The criminal homicide investigation goes cold.
March of 2019 The homicide investigation of Mark Dribin was reopened by the Portland Police Bureau’s Cold Case Homicide Detail and DNA evidence of the unknown suspect profile was submitted for a forensic genealogy investigation.
September of 2019 Christopher Lovrien is identified as a potential suspect based on the forensic genealogy investigation.
November 18, 2019 Portland Police Bureau Cold Case Homicide detectives interview Christopher Lovrien regarding the death of Mark Dribin.
February 01, 2020 Kenneth Griffin is last seen alive.
February 2, 2020 Kenneth Griffin is reported missing.
April 16, 2020 The Portland Police Bureau executes a court-authorized search warrant for a sample of Christopher Lovrien’s DNA.
April 30, 2020 The Multnomah County grand jury indicts Christopher Lovrien for the murder of Mark Dribin. An arrest warrant is issued.
May 04, 2020 Christopher Lovrien is arrested for the murder of Mark Dribin.
May 06, 2020 The Portland Police Bureau’s Detective Division conducts a search of Christopher Lovrien’s house in Southeast Portland.
May 19, 2020 The Portland Police Bureau’s Detective Division conducts a search of Christopher Lovrien’s shed and locate Kenneth Griffin’s dismembered remains inside.
May 21, 2020 Kenneth Griffin’s cause of death ruled a homicide by the medical examiner.
March 10, 2021 Christopher Lovrien re-indicted in Multnomah County Circuit Court for the alleged murder and abuse of a corpse of Kenneth Griffin.
When law enforcement executed its search warrant at Lovrein’s residence on May 06, 2020, they found six firearms, including two .9mm caliber pistols, a .40 caliber pistol, a .357 caliber revolver and two .223 caliber rifles.
The families of Kenneth Griffin and Mark Dribin are requesting privacy and do not want media contact. The Multnomah County District Attorney’s Office is asking media refrain from contacting either family.
No additional information can be released by the Multnomah County District Attorney’s Office at this time.
A charging document is only an accusation of a crime. Lovrien is innocent unless and until proven guilty.
Anyone with information regarding these investigations should contact Portland Police Detective Brendan McGuire at
(503) 823-0869 or
Brendan.McGuire@portlandoregon.gov or PPB Detective Scott Broughton at
(503) 823-3774 or
Scott.Broughton@portlandoregon.gov.
Mark Dribin Photos:
Christopher Lovrien charged with two homicides, other murder victims suspected | Multnomah County District Attorney