Donald Lock, 79, was attacked on the A24 at Findon on Thursday evening, shortly after he was given the all-clear from cancer.

Matthew Daley, 34, from Worthing in West Sussex, has been charged with murder and possession of a knife in a public place in connection with the incident.

The suspect has been remanded in custody and is due to appear at Crawley Magistrates' Court on Monday.

Detective Chief Inspector Paul Rymarz said: "Mr Lock's family has asked that they be left to grieve and are not contacted directly.

"I would like to thank the public and media for their help with the investigation."

On Saturday, the victim's family spoke of their devastation, paying tribute to a "fantastic person."

His son Andrew said Mr Lock was "full of wisdom, full of wit, always calm, always supportive, the perfect role model, and full of charm".

"Don, dad, granddad and great-granddad the best."

Surrounded by members of his family, Andrew Lock said they were "incredibly overwhelmed" at the messages of support and the "sheer volume of tributes on the various social media sites."

He thanked the people who tried to help at the scene of the incident, saying: "We are deeply grateful for what they did, and know they did all that they could. We can only say thank you to you."

Mr Lock had been married to his wife Maureen for 55 years.

He was a veteran of the town's Excelsior cycling club, still cycling up to 150 miles a week, and was looking forward to becoming a great-grandfather for the sixth time.

He had lived in Worthing for 55 years and had been a keen Brighton and Hove Albion supporter since the 1940s.

Mr Lock leaves son Andrew, daughter Sandra, four grandchildren, and five great-grandchildren, with the sixth great-grandchild due later this year.