The trial of the suspect in connection with the murder of Ghanaian teenager Javits Frimpong has been adjourned to Monday.
Frimpong, 15, was shot on Thursday, October 29 while walking to school in the Bronx, New York.
A 17-year-old was arrested and charged with murder in the shooting.
The suspect was picked up by detectives on Wednesday morning and taken to the 42nd Precinct for questioning.
The killing sparked widespread calls for justice, and for his mother to travel to the U.S. to bury her child.
NYPD Chief of Detectives Joseph Kenny said earlier that detectives were weighing three possibilities: a robbery, mistaken identity involving a rival gang, and bullying at school.
The suspect is a minor and has not been named.