Very sad news.
Russ was the first rider I ever met properly, in 1978, when he came into my Dad's shop to order a cover for his yacht. He even offered to meet me at Poole ("not a bad track but too narrow") when I was next there and take me to the pits. He also gave me signed photos of him and his father Frank both of which I still have. An all round nice guy who even then was still thrilled that he'd ridden for Belle Vue.
R.I.P Russ.