Don Lock's son: My father was a fantastic person

Don Lock's son described his father as a "fantastic person" who was "full of wisdom and full of wit".

Mr Lock was stabbed to death after a collision with another motorist.

Andrew Lock said Don was "dad, granddad and great-granddad, the best".

A 34-year-old man from Worthing is being held on suspicion of murder while inquiries continue.