Piotr Mikiewicz's sister Anna told the court in a statement that her brother had been living in London for nine years and considered it his home.
"He was a wonderful man, full of compassion for others. He did not tolerate lies and theft. He was a believer and lived according to these principles."
"He was someone who represented everything that is good about decent people and was prepared to fight for what was right.
Anyone who knew Piotr knew he was a truly good and honest person. He had a strong sense of what was right and wrong.He wasn't just a road sweeper, he was part of the community that genuinely cared for him.
Piotr was a truly good person who was immensely proud of the job he did.
A cruel and thoughtless act can take away his life, but not the inspiration that he brought to so many people."
More top news
Darren February broke into Cowell's home as he and his family slept and his security guard used the toilet.
Pilots taking off or landing at the west London airport were targeted 151 times in 2016.
All private hire drivers must sit the test at a cost to the driver of £180 unless they can prove they have a qualification in English GCSE.