Multnomah County District Attorney Rod Underhill announced that a grand jury returned a 25 count indictment against 26-year-old Logan Johannsen for the aggravated murder of 50-year-old Gregory Isernhagen.
The indictment includes 11 counts of aggravated murder, 10 counts of burglary in the first degree, one count of unlawful use of a weapon, one count of unauthorized use of a motor vehicle, one count of possession of a stolen vehicle and one count of theft in the first degree.
In court documents, it is alleged that Johannsen used a knife to intentionally cause the death of Isernhagen on or about April 8, 2019 in the 8100 block of North Jersey Street in Portland, Oregon. It is further alleged that Johannsen unlawfully and knowingly entered and remained inside Isernhagen’s residence with the intent to commit theft and to assault Isernhagen.
Additionally, the indictment alleges that Johannsen possessed and used Mr. Isernhagen’s vehicle without consent.
This investigation started on April 8, 2019 when the Portland Police Bureau responded to Isernhagen’s residence in the St. Johns neighborhood of north Portland to conduct a welfare check. Upon arriving at the residence, law enforcement located Isernhagen deceased.
The Portland Police Bureau, working with the Columbia County Sheriff’s Office, located Johannsen in St. Helens, Oregon and he was taken into custody without incident.
Johannsen is scheduled to be arraigned in Multnomah County Circuit Court on Monday, April 22, 2019 at approximately 9:30 a.m. in Courtroom #3 of the Justice Center.