Norm and Ginni Parrott, who run the 3Cs taxi company where Mr Rosenberg worked, described him as more than a taxi driver and a part of their family at the time of the murder.
Yesterday Mr Parrott said his family was still very sad over Mr Rosenberg's death but pleased with the outcome of the case.
"His death has influenced all of us, including our children. It's a very hard thing to get over but we will remember him forever in everyday life," Mr Parrott said.
Mr Rosenberg had worked for 3Cs for four years. He was a keen member of the Apollo Players and music was his great love.
He travelled the world as a drummer in the Ken Collyer Big Band in the 1970s.