51-year-old John Forsythe died after two cars collided on the Manoo Road, Kesh at around 6pm on Wednesday June 10 2015. One other woman was taken to hospital with non-life threatening injuries.
John Forsythe had been living in the Kesh area at the time of his death but was a native of Castlederg and owned a local takeaway,
Police have renewed their appeal for information over the fatal crash.
The PSNI have asked for anyone who was travelling on the Manoo Road around that time and who witnessed the collision to contact the Collision Investigation Unit on the non-emergency number 101.
Inspector David Nixon said they are particularly keen to hear from a cyclist who may have been at the scene shortly after the collision.
They believe this person may have witnessed something which could help with our enquiries.