A man in Washington state was charged with first-degree murder in the killing of his teenage daughter's boyfriend, who had allegedly sold her to a sex trafficking organization.

Spokane Police arrested John Brooks Eisenman, 60, on Friday and later charged him with first-degree murder. Eisenman confessed to the murder, according to court documents obtained by the Spokesman-Review.

The victim was identified as 20-year-old Aaron Sorensen.

Sorensen had been stabbed several times in the stomach and hit with a cinder block. His mouth was taped and his ankles and hands were bound with zip ties. He was put in the trunk of a 1991 Honda Accord.

“In October 2020 Eisenman learned his juvenile daughter was allegedly sold to a sex-trafficking organization in the Seattle area. Eisenman obtained information his daughter’s boyfriend (the deceased) may have been the one responsible for her sale. Eisenman was able to rescue his daughter and get her back to the Spokane area in October 2020,” police said in a press release.

The Spokane Major Crimes Unit detectives said they discovered that Eisenman learned in November 2020 that Sorenson would be at a specific location and planned an attack.

“Eisenman waited for the victim and confronted [Sorensen] as he arrived. During that encounter Eisenman abducted the victim, tying him up and placing him in the trunk of a vehicle. Eisenman subsequently assaulted the victim by hitting him in the head with a cinder block and then stabbed him repeatedly, causing his death,” according to the release. 

The case came together after the abandoned car was found on Oct. 22. A third party had reportedly found the vehicle and drove it to Spokane. The driver is not believed to have known that there was a body in the car.

Police said they responded to a call that there was an abandoned car with a “foul odor” coming from it and then found the body.

Police said Eisenman surrendered to officers without incident.

Eisenman had no recent criminal history. He is being held on a $1 million bond at Spokane County Jail.