Transcript for Police search for accomplices in deadly stabbing of Barnard College student
We do want to turn to the shocking murder of a college freshman. A 13-year-old boy has been arrested in the case and a search is on for more suspects. This morning, the 13-year-old suspect arrested in the horrific murder of Barnard college freshman Tessa majors is being held without bail. Those responsible, however many there may be, will be brought to justice. Reporter: The juvenile suspect whose identity is not being released was allegedly found with a knife a few blocks away from the school. Police also found a trail of blood. They have one in custody and he is the storyteller. He is the narrator. You get detailed information and you see if that coincides with the physical evidence. Reporter: The 13-year-old is facing charges of murder, robbery and weapons possession in majors' death. She was walking through a park Wednesday night when authorities say a group of suspects snatched her purse, then stabbed her multiple times. The teen suspect's aunt defending him to "The New York daily news" saying he didn't do this. My nephew did not do that. Detectives believe there may be as many as three individuals linked to the killing. The arresting officer testified the 13-year-old was not majors' actual killer but claimed he picked up the knife and gave it to one of the other suspects. A 14-year-old suspect is also now being questioned. The Barnard campus community and majors' hometown in Virginia now mourning the death of the aspiring journalist and talented musician. When you saw her, you knew that that's what she was meant to be doing. She was a great performer. And authorities are still searching for that third suspect. Sources tell ABC news statements the 13-year-old made to police match what detectives saw on surveillance video from the park where Tessa majors was killed. Horrifying case all around. Whit, thank you.
This transcript has been automatically generated and may not be 100% accurate.