The incident occurred in April 2019.
The case dates back to June 2019.
The National Police in Playa de Palma made the arrests.
The boy was attacked at a school in Can Pastilla on Wednesday.
Images of the attack of the boy at the school in Palma.
The five include one woman.
There had previously been a fight between two boys.
He was found unconscious the day after the assault.
The street seller had tried to prevent a robbery.
A professional K-1 fighter intervened.
The third arrest of a Playa de Palma doorman this season.
A deep cut to the neck required hospital surgery.
There were two incidents, the first of them on the beach.
The doorman was arrested and later released.
The incident occurred towards the end of March.