Drive-by shooter mistakenly targeted and killed Lacey teens, court records say
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Two Lacey teens killed in Nov. 14 drive-by shooting
Two suspects have been arrested in connection to the Nov. 14, 2025, drive-by shooting that killed brothers Alexander Borgen, 16, and Deven Borgen, 17, in Lacey.
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A 20-year-old Lacey resident accused of murdering two teenage boys in a Nov. 14 drive-by shooting is being held in the Thurston County jail without bail.
Trequanne Trenelle Wilson Mason attended his preliminary appearance hearing in Thurston County Superior Court on Wednesday.
Lacey police arrested him the day prior in connection to the deaths of Alexander Borgen, 16, and Deven Borgen, 17. Officers found the two brothers with gunshot wounds in the road in the area of 24th Avenue Southeast and College Street Southeast, which is about two blocks south of Mountain View Elementary. Both of them died at the scene.
Investigators said they identified Wilson Mason as a suspect in the ensuing days and tracked him to a hotel in Wenatchee. Officers arrested him Tuesday and booked him into the county jail early Wednesday morning on suspicion of two counts of first-degree murder and two counts of drive-by shooting.
Newly released court records reveal details about the investigation. Prosecutors allege Wilson Mason mistakenly targeted Alexander Borgen, believing he was someone who shot at his home in October 2024.
From a vehicle, Wilson Mason allegedly fired a gun more than two dozen times at Alexander Borgen, who was walking home with his brother, Deven Borgen. Both were struck by the gunfire and Wilson Mason fled the scene, prosecutors allege.
Court records indicate another, unnamed person drove the vehicle as Wilson Mason fired the weapon. It’s unclear who that person was or where they may be.
What happened in court Wednesday?
In court Wednesday, prosecutors accused Wilson Mason of the following crimes:
- Two counts of first-degree aggravated murder in the first degree, premeditated, while armed with a firearm.
- Two counts of drive-by shooting.
- Second-degree unlawful possession of a firearm
- Tampering with physical evidence.
- Violation of a domestic violence no contact order
Judge John Skinder found probable cause for the alleged crimes and ordered Wilson Mason be held without bail.
Deputy Prosecuting Attorney Corey Thompson asked Skinder to hold Wilson without bail pending a trial in this case as well as an older case.
Wilson Mason was also arrested Tuesday on a felony warrant for violating a court order in connection to a February domestic violence case.
In that case, he’s accused of pointing a gun at the mother of his child at a Lacey home. Court records indicate he was charged with two counts of second-degree assault while armed with a deadly weapon, felony harassment – threat to kill and fourth-degree assault.
On Feb. 19, Thurston County Superior Court Judge Allyson Zipp set bail at $25,000 and ordered that he have no contact with the mother or the child, according to court records.
Wilson Mason posted bail two days later. On Tuesday, Superior Court Judge John Skinder ordered a bench warrant be issued for his arrest based on new information from Lacey police who were investigating the Nov. 14 drive-by shooting.
“While out on release conditions, he’s accused of committing this heinous act on the new case,” Thompson said.
Wilson Mason used a modified firearm to commit the new crimes despite being prohibited from possessing firearms, Thompson said. Court records show investigators believe he used an automatic firearm.
“Through his own admission, he targeted the wrong individual,” Thompson alleged. “We are asking that a person who is accused of committing such violence in our community be held without bail.”
Wilson Mason was represented by defense attorney Diana Wildland during the Wednesday hearing. She asked the court to delay making a finding on the requests to set a no bail hold and revoke his previous conditions of release. However, Skinder sided with the prosecution.
“The court is finding that bail will be denied because the state has made a showing by clear and convincing evidence of a propensity for violence that creates a substantial likelihood of danger to the community or any persons,” Skinder said. “The allegations are the most serious offenses in our state. They are punishable by up to life in prison.”
Skinder invited family members to address the court during the hearing.
Christina Borgen, mother of the two slain teens, said her children did not deserve the violence that befell them.
“My kids are very good boys,” Borgen said. “They did not deserve to be walking home and get blasted by some evil freaking person ... . I don’t care who you were targeting. Nobody deserves to get blasted. My son Deven had all As in school. He went to church. My son Alex just changed his life, had all As (and) was doing good. You killed two innocent boys. I hope you sleep at night with that.”
Wilson Mason is due back in court on Nov. 25 for his arraignment hearing.
The investigation
A probable cause statement describes the investigation into Wilson Mason from the perspective of law enforcement. Prosecutors file such statement with the court so judges can find probable cause for alleged crimes and set conditions of release.
The following is a summary of the allegations in that statement:
Lacey police responded to a report of two teens with gunshot wounds at the intersection of 24th Avenue Southeast and College Street Southeast at about 1:50 a.m. Nov. 14.
Detectives were called to the scene after both teens were pronounced dead. Though both were shot, Alexander Borgen appeared to have more injuries.
Investigators pieced together what happened with interviews and local security footage.
The teens spent the evening of Nov. 13 at a residence on Shale Street Southeast. They started walking home just before 1 a.m. Nov. 14.
A suspect vehicle drove through the intersection of Belair Drive Southeast and College Street Southeast at about 1:46 a.m. The shooting occurred seconds later at 24th Avenue Southeast and College Street.
The driver then made a U-turn and sped away, traveling south on College Street before turning eastbound onto Belair Drive. The vehicle is described as a light-colored SUV.
One camera showed a motion-sensitive light trigger at a house in the 4600 block of Belair Drive Southeast. A shadowy figure was reportedly captured going toward the house.
An officer later noticed a security camera at the house and asked the occupants for footage, but an unidentified person denied having footage.
Detectives looked up the address in their records and learned the house was associated with the February case involving Wilson Mason.
In the course of that case, officers searched the home and recovered a Glock 22 .40 caliber handgun in Wilson Mason’s room along with ammunition and other gun parts. The gun reportedly had a switch on the back that could turn it into a fully automatic weapon.
Law enforcement surveilled the residence. On Nov. 15, they noted a 2017 Kia Sportage was coming and going from the residence. To investigators, it had similar rear lighting to the suspect vehicle seen in videos.
On Nov. 17, investigators noticed a gray BMW SUV parked at the home and followed it a local grocery store. There, officers identified a woman driver and noticed there was a male passenger.
The vehicle then stopped at an address on Eastside Street Southeast where an unidentified woman entered the vehicle and an unidentified man placed a suitcase in the vehicle.
Investigators followed the vehicle to a local marijuana dispensary on Martin Way East where they identified the passenger as Wilson Mason. Investigators then continued to follow the vehicle all the way to a hotel in Wenatchee.
On Nov. 18, investigators searched the home on Belair Drive Southeast and contacted two people inside.
One of them was the owner of the 2017 Kia Sportage. He was reportedly “adamant” that his vehicle was not involved in the shooting.
The man told the detective he learned Wilson Mason had a firearm the week prior and he told Wilson Mason to get rid of it. He said Wilson Mason called him in the early morning of Nov. 14, but he missed the call because he was asleep.
The other occupant in the home, a woman, reportedly told the man that Wilson Mason entered the home and woke her up. She said Wilson Mason was leaving because he “didn’t want to bring any type of trouble to the house,” the statement reads.
The two occupants reviewed their security footage from around 1:30 a.m. that morning and saw Wilson Mason leave the home and enter a light-colored SUV across the street.
Wilson Mason later came back into the camera’s view and appeared to be jogging, the man told the detective.
The man reportedly said he believed Wilson Mason was involved in the homicide and he thinks he targeted the boys, believing they were involved in an October 2024 shooting at his home.
Law enforcement spoke with Wilson Mason once he was arrested. He allegedly admitted to shooting at the boys from a white SUV and said he mistakenly targeted Alexander Borgen.
He said he wanted to make the October 2024 shooter pay for attacking his home and injuring his dog.
Wilson Mason said he had the driver pass by the boys and circle back to make sure he had the right target. He said he was “99% positive” Alexander Borgen was the person he believed shot at his home, according to the statement.
He said he took the firearm from the driver, leaned out the passenger window and fired about 27 rounds. He said the driver then made a U-turn and dropped him off at home.
When asked about the missing security footage at the residence, he allegedly admitted to deleting the videos.
Law enforcement also interviewed the woman who drove the gray BMW SUV and accompanied Wilson Mason to Wenatchee. The statement identified her as the mother of Wilson Mason’s child and the person he pointed a gun at in February.
She said Wilson Mason called her between 1-2 a.m. Nov. 14 and asked her to drive by his house to check out the police response in the area. A few hours later, she picked up Wilson Mason in the northeast area of Lacey.
Together, along with their child and the woman’s mother, they travelled to a Seattle motel where they stayed for about 12 hours, she said. The four of them then returned to Lacey to collect their belonging and went to Ocean Shores.
They stayed in Ocean Shores from the night of Nov. 14 to the morning of Nov. 17. While there, Wilson Mason reportedly learned the identities of the two teens he shot and “became emotional” at the realization he shot the wrong people.
The woman said Wilson Mason then confessed to her that he was the shooter. The four of them returned to Lacey on Nov. 17 and Wilson Mason suggested they go to Wenatchee next.
This story was originally published November 19, 2025 at 3:25 PM.
