Yoselyn Ortega's lawyer entered a not guilty plea as she lay silent and handcuffed on a hospital bed, the New York Post reported. Ortega was formally charged with the first-degree murder of Lucia Krim, 6, and her brother, Leo, 2.
The children's mother, Marina Krim, found Lucia and Leo bleeding to death in a bathroom in the family's apartment on Manhattan's Upper West Side on Oct. 25. Ortega, who had allegedly tried to cut her own throat, was with them.
Ortega has been under guard at Columbia-Presbyterian Hospital since the killings. She is scheduled to appear in court Jan. 16.
Notable deaths of 2014 [PHOTOS]