Portland police early Monday booked a man into the downtown Portland jail on an allegation of murder.

Thomas Dorris, 48

Thomas Lincoln Dorris, 48, was arrested at Northwest Fourth Avenue and Burnside at 10:25 p.m. Sunday, shortly after police were called to a shooting in Portland's Old Town neighborhood.

Police said some type of dispute resulted in a shooting about 10:15 p.m. on Northwest 4th Avenue, between Couch and Davis Street.

Central Precinct officers responded.

A man died at the scene from at least one gunshot wound, police said. A woman was taken to a hospital with a non-life threatening gunshot wound to her leg, police said.

Detectives are continuing to investigate the shooting. They're looking into whether the shooting resulted from a drug-related dispute.

Police have not released the names or ages of the victims.

About 4 p.m. on Monday, the medical examiner's office said it could not release the homicide victim's age or name because his family had not yet been notified.

The fatal shooting marks the fifth homicide in Portland this year.

Portland police detectives booked Dorris into the Multnomah County Detention Center at 4:41 a.m. Monday. He'll be arraigned in court on Tuesday afternoon.

Detectives also suspect they've recovered the gun used in the shooting, police said.

Dorris, a convicted sex offender, has lived in Eugene most recently. He was given a traffic citation earlier this month in Portland, at Southeast 82nd Avenue and Stark Street, for failing to obey a street's one-way sign on June 11, according to jail records.

He was convicted of first-degree and third-degree sex abuse in 2001 while living in Springfield. He served time in prison from 2001 to 2007 and was ordered to be on 10 years of post-prison supervision, according to court records. He also was convicted of first-degree burglary in Deschutes County 2008, sentenced to two years in custody and placed on three years post-prison supervision.

Anyone with information on Sunday's shooting is asked to contact Det. Michele Michaels at 503-823-0692, or at michele.michaels@portlandoregon.gov.

-- Maxine Bernstein

mbernstein@oregonian.com

503-221-8212

@maxoregonian