The reward for information leading to an arrest in the killing of a Fairfax Station man has been increased to $70,000 as detectives search for new clues two years after his homicide.

Yong Suk Yun, 61, was found dead inside his home in the 5700 block of Ladues End Court on Oct. 7, 2010. Police believe his killing stemmed from a robbery.

Yun, who owned the Dr. Wash in Chantilly, was stabbled multiple times in the upper body and detectives believe more than one person might have been involved in his death.

Investigators have interviewed over 100 people and watched 100 hours of video in an effort to find the killer, but have not made any arrests.

Detectives continue to ask for the public's assistance in reporting any information to the police. "We are committed to solving this murder and continue our plea to the community for information," said lead detective Connie Morris.

Anyone with information is asked to contact Crime Solvers by phone at 1-866-411-TIPS/847.