The victims escaped their home, disarmed the attacker and survived violence prosecutors said had been planned for about a month.
SALINAS, Calif. — The man at the door carried a package and identified himself as an Amazon delivery worker, presenting an ordinary reason for someone to open a home. When the woman’s boyfriend answered, authorities said, the visitor forced his way inside and began stabbing him.
The apparent delivery on Nov. 25, 2024, became a struggle that moved through the residence and outside. The boyfriend suffered multiple serious wounds. The woman tried to defend him and was also attacked. Both eventually escaped the home, and the boyfriend disarmed the intruder. Their resistance prevented the deaths that prosecutors said Devin Wolfgang Vanderhoef had traveled from Canada to cause.
Vanderhoef, 26, of North Vancouver, British Columbia, was sentenced June 25 to two consecutive life terms. A Monterey County jury had convicted him of two counts of willful, deliberate and premeditated attempted murder and one count of residential burglary. Jurors also found that he personally used a weapon and inflicted great bodily injury. Judge Mark E. Hood added five consecutive years to the life sentences for those findings.
The false delivery identity was central to how the attack began. Prosecutors said Vanderhoef chose to pose as an Amazon worker so he could approach the woman’s residence without immediately appearing threatening. He carried a package while standing at the door. Investigators later found handcuffs, duct tape and knives connected to the package, though early reports said the exact intended use of every item had not been determined.
The boyfriend opened the door and encountered Vanderhoef at close range. Authorities said Vanderhoef forced his way across the threshold and immediately began stabbing him. The public reports do not describe a conversation before the violence or say whether Vanderhoef continued claiming to be a delivery worker after the door opened. The deception had already served its main purpose by placing him close enough to enter the home.
The woman responded by grabbing a sharp metal object and trying to protect her boyfriend, according to the Monterey County Sheriff’s Office. Vanderhoef then turned part of the attack toward her. Early accounts said she was stabbed and strangled and suffered moderate injuries. The county has not released her name, the boyfriend’s name or detailed medical information. Their identities and much of their recovery have remained private.
The couple succeeded in getting outside, but the attack continued. Prosecutors said Vanderhoef followed them from the residence rather than leaving when they escaped. During the struggle outside, the boyfriend was able to take away Vanderhoef’s knife and stab him repeatedly. Vanderhoef suffered critical wounds, according to the sheriff’s initial account. Even after being injured, he remained able to target the woman again.
As the woman tried to run back inside the house, Vanderhoef tackled her, prosecutors said. He then strangled her until she could not breathe. Officials have not said how the strangulation ended or who physically stopped Vanderhoef. The public account establishes that both victims survived and that law enforcement and emergency personnel reached the scene after several calls reporting a stabbing.
The woman, her boyfriend and Vanderhoef were transported to a hospital. Initial reports described the boyfriend and Vanderhoef as critically injured and the woman as moderately injured. No later medical update has been released by the county. The restrained descriptions leave the long-term effects unknown, but the jury later found that Vanderhoef had caused great bodily injury during the crimes.
The movement from the doorway to the outside struggle became important evidence of intent. Prosecutors said Vanderhoef did not stop after gaining entry, injuring the boyfriend or seeing both victims flee. He followed them and continued attacking. His pursuit supported the state’s position that he intended to kill rather than merely frighten, threaten or injure the couple during a brief confrontation.
The circumstances before the knock provided further evidence. Vanderhoef had met the woman through online video gaming. Authorities said he developed a prolonged fixation on her, then spent about a month preparing for the attack. He flew from Canada to Monterey County, bought knives, handcuffs and duct tape, and watched the woman’s home and workplace before approaching her residence.
Prosecutors said Vanderhoef later confessed that his plan was to “actually kill someone.” The county has not released a complete recording or transcript of that statement. It is therefore not publicly known what else Vanderhoef said about the victims, the equipment or the intended sequence of events. The quoted words appeared in official announcements after his conviction and sentencing.
The package and delivery claim joined the preparation to the physical assault. A package carrier is commonly expected to approach a residence, stand near the entrance and wait for someone to answer. Prosecutors said Vanderhoef used that familiar role as cover. There is no allegation that Amazon or a legitimate delivery employee took part. The company’s name was used without authorization as part of the deception.
The burglary conviction arose from the forced entry into the residence. Burglary does not require an accusation that property was stolen. Prosecutors can establish the offense by proving that a person entered a building while intending to commit theft or another felony. Jurors found Vanderhoef guilty of residential burglary after hearing that he used a false presentation at the door and forced his way inside before attacking the boyfriend.
The two attempted murder convictions reflected the separate danger to each victim. The boyfriend was the first person attacked after opening the door and suffered multiple serious wounds. The woman was attacked while defending him, followed outside and assaulted again when she tried to return to the home. The jury concluded that Vanderhoef intended to kill both of them and that each attempt was deliberate and premeditated. The boyfriend’s act of disarming Vanderhoef altered the balance of the fight. No public report indicates that he faced a criminal allegation for using the weapon against Vanderhoef. Authorities treated the stabbing of Vanderhoef as part of the couple’s effort to survive an ongoing attack. The victims had attempted to retreat from the house, but Vanderhoef continued pursuing them, according to prosecutors.
A second Canadian man, Darius Avery Whyte, had traveled with Vanderhoef. Investigators found Whyte near the scene, where he claimed he did not know what had occurred. Authorities did not initially hold him. They later determined that he knew Vanderhoef’s intentions and had acted as an accomplice. Deputies arrested Whyte the next morning aboard a departing flight at San Jose Mineta International Airport. Whyte pleaded guilty to assault by means of force likely to cause great bodily injury and to being an accessory after the fact to a felony. He was sentenced April 3 and testified against Vanderhoef. County releases have not detailed Whyte’s sentence, the full terms of his plea or all the conduct attributed to him. His testimony provided the prosecution with evidence from someone who had accompanied Vanderhoef from Canada.
Vanderhoef chose to go to trial. In February, jurors convicted him of the two attempted murders and burglary and returned the weapon and injury findings. Those decisions changed the case from a set of criminal accusations into adjudicated facts for sentencing purposes. The finding of premeditation showed that jurors accepted the prosecution’s account of planning rather than viewing the violence as a spontaneous dispute at the doorway.
Hood ordered the two life terms to be served consecutively, meaning one follows the other. The five additional years are also consecutive. The county did not provide a first possible parole date or a projected release date in its announcement. The sentence nevertheless assigns separate punishment to the attempted killing of each victim and additional punishment for the weapon use and serious injuries.
The doorway remained the point where planning became action. Before it opened, Vanderhoef had traveled, acquired equipment, conducted surveillance and adopted a disguise. After it opened, the prosecution’s case rested on what he did to both occupants and his refusal to stop when they escaped. The jury found that the full sequence amounted to two planned attempts to kill. Monterey County Sheriff’s Detective Arras Wilson investigated the case. Sheriff Tina Nieto later credited detectives and prosecutors with carrying the investigation through trial and sentencing. She also said online communication can be used for deception and exploitation, referring to the way Vanderhoef first met the woman. The criminal case itself focused on the acts he committed after that contact.
The public record does not say whether the victims knew Vanderhoef was in California before the knock, whether they recognized him immediately or whether the house had a doorbell camera. It also does not explain how he obtained the woman’s home and workplace addresses. Those details remain outside the official account, while the purchases, surveillance and attack were established through evidence presented at trial.
The principal cases are now complete at the trial level. Whyte resolved his case by plea, and Vanderhoef was sentenced after a jury verdict. No additional defendant or future hearing was announced. The couple survived the attack that began with a package at the door, and the person convicted of carrying it out received two consecutive life sentences.
Author note: Last updated July 27, 2026.