A man arrested in Belfast on Thursday in connection with the murder of Donaghmore man Matthew Boyd in 1993 has been released unconditionally.
The 60-year-old creamery worker was shot dead on the Donaghmore Road near Dungannon just after 3pm on January 11 1993.
He was found slumped over the steering wheel of his red Vauxhall Astra estate car.
Shot twice, the father-of-four was taken to hospital for treatment to his injuries but passed away later that evening.
Mr Boyd had lived in the Donaghmore area, but was a member of Pomeroy Pipe Band and the local branch of the Orange Order.
The IRA claimed responsibility for the murder.
Detectives from Legacy Investigations Branch investigating the murder had detained a 49-year-old man in the Serious Crime Suite at Musgrave Police Station on Thursday.
However he was released the same day.
Police have issued a fresh appeal for anyone who was in the area on the day in question and who witnessed the murder or anyone with any information that can assist with the investigation to contact them in the Legacy Investigations Branch on 101.
Information can also be passed anonymously via 0800 555 111.