Eight other children and two adults suffered serious injuries, with several still in critical condition.
Merseyside Police announced the charges during a press conference last night.
He was born in Cardiff.
A mother hugs her child as they look at floral tributes for the victims of a deadly knife attack in Southport, England.PETER POWELL/AFP via Getty Images.
The 17-year-old cannot be named for legal reasons as hes under 18.
Our thoughts remain with the families of all of those affected by these harrowing events.
More than 100 people were arrested during the demonstration.
Eight people were also arrested in Hartlepool, where a police car was set on fire by protestors.
Starmer is set to meet with senior police leaders at Downing Street today.
