Mr Kouzaris and his university friend Mr Cooper were shot dead in a housing estate A 16-year-old boy has been charged with murdering two British tourists in Florida.
Shawn Tyson was arrested over the murders of James Cooper and James Kouzaris in Sarasota, in April.
He has been charged as an adult on two counts of first degree murder. The trial is expected within the next 18 months.
Mr Cooper, 25, of Warwick, and Mr Kouzaris, 24, of Northampton, were shot dead in in the Newtown area.
The authorities in Florida had previously admitted they were wrong to release Shawn Tyson after a previous offence, hours before he allegedly shot and killed the two friends, who were on holiday in the area.
He had been held after shots were fired at a car on 7 April and a judge said he was concerned the boy posed a danger to the public.
His warning was not passed on to a second judge who released him on 15 April.
Mr Cooper and Mr Kouzaris were killed a day later.
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