Lincolnshire Police have released a video appeal for witnesses of a fatal collision between a scooter and a car in Lincoln, including CCTV footage of vehicles that were in the area at the time.
Police are keen to speak to the drivers of the cars highlighted in the CCTV footage.
The drivers of a red Ford Transit-style LGV, a car thought to be a Mazda RX-7, a white van thought to be a white Peugeot Partner and a fourth distinctive vehicle with logos to the rear are considered important witnesses.
Lincoln man Jim Dakin, 82, was travelling on a mobility scooter along Newark Road on October 17 when a passing car crashed into him before continuing to drive away from the scene.
Jim died from his injuries four days after the collision.
As previously reported, and after numerous police appeals for witnesses, a 50-year old woman was arrested in connection with the crash. She has been released on bail.
Anyone with information is asked to contact the witness hotline on 01522 558855.