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
A 15-year-old school boy has been stabbed 'five or six times' on his first day back at school in north London after the summer holidays.
Today's showers should clear overnight - and tomorrow will be more settled, but temperatures still feeling cool.
The pair have been poring over old maps and records in their bid to convince the council the warehouse should not be converted into flats.