July 18 2019
10:38 AM
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Suspect in Two Violent Attacks Arrested
by Oregon State Media, Inc.
  Wednesday July 26, 2017 - 8:58 AM
PORTLAND, Oregon - On Tuesday July 25, 2017, Portland Police Bureau Sex Crimes Unit detectives booked 31-year-old Sergio Jose Martinez into the Multnomah County Jail after his arrest Monday evening in connection with a violent attack in the Sullivan's Gulch neighborhood.

Martinez was booked into jail on charges of Robbery in the First Degree, Kidnap in the First Degree, and Assault in the Second Degree. Additionally, detectives linked Martinez to an attack reported earlier Monday morning a few blocks away in the Kerns Neighborhood. In connection with that case, Martinez was booked into jail on charges of Robbery in the First Degree, Burglary in the First Degree, Sodomy in the First Degree, and Sex Abuse in the First Degree.

Martinez will be arraigned on Wednesday in Multnomah County Court and investigators anticipate additional charges after a grand jury is presented the case.

Martinez was arrested on Monday evening after North Precinct officers responded to the report of a disturbance in the 2100 block of Northeast Halsey Street involving a male and female in the basement parking garage of a building.

As officers were responding to the area they received additional information that the male suspect (Martinez) was armed with a knife and that he assaulted a female.

Officers arrived in the area, located the victim and Martinez who ran from police. Based on the information received and observations of the officers, officers chased Martinez on foot through the neighborhood and several residences before capturing him in a neighborhood apartment.

The victim and Martinez were transported to Portland hospitals for non-life-threatening injuries. Martinez was released earlier today and transported to jail.

Earlier on Monday July 24, 2017, at 6:11 a.m., Central Precinct officers responded to a residence in the 1700 block of Northeast Irving Street on the report of a sexual assault.

Officers arrived in the area and contacted the 65-year-old female victim who told police that a stranger broke in to her residence, physically and sexually assaulted her, and stole her car.

The victim's vehicle was a silver 2012 Toyota Prius with Oregon license plates 9-S-9-5-9-9. It was later located in the area of Southeast 99th Avenue and Stark Street.

Anyone with information about Martinez is asked to contact Detective Todd Prosser at 503-823-0400,

Stranger-to-stranger sexual assaults fortunately are a rare occurrence.

The Portland Police Bureau collaborates with government agencies and community organizations that provide access to advocacy services to victims of sexual assaults.

A victim may be accompanied by a sexual assault advocate or other appropriate support person during the reporting process and/or criminal investigation.

Multnomah County Victims' Assistance Program: Provides support during the reporting of sexual assaults and referrals to victim services and resources: 503-988-3270.

Call to Safety (formerly the Portland Women's Crisis Line): Provides access to advocacy services, including confidential peer support, information and referrals to community resources. 24 hour crisis line: 503-235-5333, 1-888-235-5333, or

Project UNICA (Proyecto UNICA): Provides access to advocacy services for Spanish-speaking survivors of domestic and sexual violence. 24 hour crisis line: 503-232-4448, or 1-888-232-4448.

Additionally, the Portland Police Bureau Strength programs provide free self-defense classes and personal safety workshops to people around the Portland area.


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