Pretty much everyone is doing a shitty job of reporting or discussing this with any semblance of objectivity or nuance.
Five people were convicted of murdering two people.
One adult male and four teenage males were convicted of murdering two teenage males.
Two adult men and three teenage boys were convicted of murdering two teenage boys.
An adult male 45, a teenage adult male 18, and three teenage boys 17, 16, 15 were convicted of murdering two teenage boys age 16 and 15.
It is the youngest boy 15, who confessed to murdering the 15 year old boy, but denied killing the 16 year old boy.
Those calling for the most extreme penalties for three teenage boys who murdered two teenage boys, without any attention to power structures, deprivation, indoctrination, or the epidemic of shit parenting in an ever more unequal society, well, they are simply indulging their own monstrous tendencies, from an armchair.