NEWARK - Police have arrested a teenager and charged him with the murder of another teenager near his school.

Coulibabry Wilson, 15, was gunned down after an argument Tuesday afternoon. He was the second freshman from Weequahic High School to be murdered this academic year. 

A 17-year-old was arrested in Newark and charged with the crime late Wednesday night. His name hasn't been released because of his age. 

Investigators credit the quick arrest to the idea that Newark residents will cooperate with police when the victims are children.

"A young man, dressed in his school uniform, is killed in front of many people, outside of a school... Fortunately we don't have to experience that frequently, but I do believe members of the community react and respond," says Acting Essex County Prosecutor Carolyn Murray.

Wilfredo Perez was the lead detective on this case and spoke with Wilson's parents. "As a father myself, I can only put myself in the place of his parents," he says. "It's a great loss."

Sharif Amenhotep, with the Newark Anti-Violence coalition says two families have suffered in this case. "It becomes like a tragedy as well as a crime because we got two African-Americans under the age of 18, one who lost his life and another who could potentially lose his life to the criminal justice system," he says.

The state could look to try the juvenile as an adult. 

Weequahic High School has had extra school security officers on hand through final exams.