Nine reports the boy was ambushed by a group who had knives stuffed in their sleeves and pants.
"He was a good kid, he goes to church, he comes from a good family and a humble family, it's just so unfortunate that this has happened to him," family friend Foa Galuega said.
She told Seven the group had "jumped him".
"They chased him down with knives and baseball bats," she said.
"I think it's all got to do with social media and bullying and things that they say online and they came after him."
A number of people gathered at the scene late on Tuesday including high school students.
Homicide detectives are investigating the exact circumstances surrounding the incident.