Police have named the man who died at a party in Chelmsford on Sunday.
He was Anton Jardin, 39, from Eastwood Road, Rayleigh. His family said:
"Anton was our loving and caring son, brother and uncle. He was a talented artist and graphic designer, full of enthusiasm for life.
"He loved fitness and sport, including running the London Marathon in 2010 in aid of a local children's hospice. He enjoyed travelling, especially a trip to Australia.
"We are devastated at losing him, words cannot express our loss; there is a hole in our lives which cannot be filled. He was be sorely missed by friends and family.”
Ten men remain in police custody as investigations into Mr Jardin's death continue.
More top news
After a night of thunderstorms across the East, this afternoon and this evening will stay calm, warm and sunny.
Two schoolboys have sent their favourite teddy bear up into the atmosphere.
A British family believed to have fled to Syria have joined Islamic State, according to a statement said to be released on their behalf.