Police think a businessman who was slain inside his upscale Fairfax Station home in October 2010 was the victim of a targeted robbery.

One year after the killing of Yong Suk Yun, 61, Fairfax County police detectives released new details Thursday to try to generate fresh leads.

Detectives also said they are trying to find the driver of a white pickup truck with a landscaping trailer that was seen near Yun’s home around the time of the killing.

“We think his house was specifically targeted,” Detective Daniel Bibeault said. “There’s no public transportation there. You don’t walk there.”

Yun lived in a spacious home in a cul-de-sac in the 5700 block of Ladues End Court off the Fairfax County Parkway.

Bibeault revealed for the first time that Yun, who owned the Dr. Wash carwash in Chantilly, was stabbed multiple times in the upper body. He also said detectives think there might have been more than one person involved in the crime and said cash was taken from Yun’s home.

Yun’s wife found his body inside their garage shortly before 4 p.m. Oct. 7, 2010.

Yun’s sport-utility vehicle also was stolen. It was found four days later in Annandale.

Detectives have interviewed more than 80 people, reviewed 100 hours of video and explored numerous leads. They asked for more help from the community Thursday.

“Something that seemed random or un-noteworthy could be the missing link in this case,” Detective Connie Morris said.

Bibeault said that forensic work is ongoing in the case and that police have more video to review.