Double murder of Nikayla Powell and Mayra Rodriguez by homeless sex offender Mark Beebout

Mugshot of Mark Beebout

Mark Beebout, a sex offender turned killer, preyed on women from a Portland Ministry that helped the homeless. Terror in the Pacific examines how Beebout murdered teenager Mayra Rodriguez, who came seeking help and how he then went on to kill volunteer Nikayla Powell.

Beebout, who was homeless at the time, first encountered Mayra Rodriguez at the church he frequently used as a base. In June 2012, 15-year-old Mayra approached the ministry looking for assistance.

The San Diego teenager had been staying with relatives in Vancouver when she ran away. She was attempting to acquire a bus ticket to get to California.

Mayra Rodriguez wanted help from Mark Beebout

Church staff tasked Beebout with helping the girl find a bus ticket; unfortunately, instead of assisting the girl, he sexually assaulted and strangled her before dumping her body in Washington Park.

Four months passed before police were able to identify her remains; finally, a sheriff recognized her from a police composite sketch of the runaway. Dental records were then used to confirm Mayra’s identity. DNA evidence from Mayra’s remains would later link Beebout to her murder.

A month later, Beebout strangled 32-year-old Nikayla Powell in her Southeast Portland apartment. They had met at another Portland ministry, where Nikayla volunteered as part of Operation Nightwatch, an organization catering to the homeless.

Watch the Latest on our YouTube Channel

Volunteer Nikayla Powell tried to help Beebout

Nikayla offered Beebout a place to stay, a room in her apartment. He repaid her kindness by strangling her with a shoelace. A maintenance man found her body after she’d been dead about six days.

Police identified Beebout as Nikayla’s killer when he used her bank and food stamp cards and then one of his own cards right immediately after. While in custody, he was linked to Mayra’s murder.

A third woman had a lucky escape the previous year, Amy Lewis had been in a relationship with Beebout since 2010 when he began to turn violent. She described him as manipulative an a “very good liar,” she was sexually assaulted and beaten so hard that she feared death.

Beebout had a dark past; he had been placed on a sex offender registry after a conviction for sexually assaulting a 14-year-old girl in California.

The judge sentenced Beebout, 40, to two consecutive true-life prison terms, meaning no possibility of parole, under a plea deal.

Follow the links to read about two more horrific crimes that affected this Pacific Northwest city, including the brutal rape and murder on Christmas day 2012 of Jaime Lyn Larson. Or the baffling death in 2016 of Mitra Mehrabadi, murdered by friend and colleague Jimmy Morgan who took his own life as police officers approached him a short time later.

Terror in the Pacific is at 8/7c on Investigation Discovery.

Notify of

1 Comment
Newest Most Voted
Inline Feedbacks
View all comments
catherine dynes
catherine dynes
3 years ago

Nikki Powell was my friend. I wish they never crossed paths. She was working for a church group that did homeless outreach and she was not a trained social worker which made her more vulnerable to Beebout. She was kind soul who would give you the shirt off her back. I still think of Nikki, and this will always haunt me for the rest of my days. I also wrote a letter to the judge when Beebout applied for a name change because he had converted to the Muslim religion, obviously it was a ruse to obscure his record of crimes. This man had a history of predatory violent sex offenses and had been paroled prison previous with time off for good behavior for a previous crime he was serving sentence for. I did some research and this was clearly another systematic failure to keep these predatory offenders monitored tracked and in secure facility. They should never be released at all…This happens over and over again and yet the system is still inadequate in protecting society from these kind of dangerous predator’s. That’s what makes me the angriest. The failure to protect innocent potential victims. My condolences to Mayra’ s parents ,his second victim after he drove may friends car and used her credit cards.ate her food…I’m so sorry she had to cross paths with this dirt bag. .It’s too bad Oregon no longer has a death penalty since psychopaths like Beebout can’t be rehabilitated…

Would love your thoughts, please comment.x