Knife-wielding teen pleads guilty to murder of Barnard student Tessa Majors

The last of the three teens arrested in the murder of Barnard College freshman Tessa Majors has pleaded guilty.

Majors, 18, was fatally stabbed in Morningside Park, just off the Columbia University campus, on Dec. 11, 2019, rattling New York City.

Rashaun Weaver, who prosecutors said wielded the stolen knife, pleaded guilty on Thursday to Majors' murder and two earlier robberies.

Weaver was 14 years old at the time of the crimes.

The Manhattan District Attorney's office established a suspected motive; prosecutor Matthew Bogdanos said Weaver claimed Majors bit him during the botched robbery gone bad.

"That's why he did it. She fought back," Bogdanos said.

Judge Robert Mandelbaum agreed that Weaver will be sentenced to 14 years to life.

Defense attorney Jeffrey Lichtman said Weaver "is deeply remorseful."

The second suspect, Luchiano Lewis, also 14 at the time and charged as an adult, pleaded guilty in September to second-degree murder and second-degree robbery. He was sentenced to the maximum of nine years to life in prison. The third suspect, a 13-year-old juvenile, also pleaded guilty and was sentenced to 18 months detention.

Weaver will be formally sentenced Jan. 19.