Nadine Menendez surrendered to federal authorities Friday afternoon and is in the custody of the Bureau of Prisons at the Federal Correctional Institution Tallahassee.
Matthew Perry's live-in personal assistant, who injected him with the fatal dose of ketamine, was sentenced Wednesday to three years and five months in prison.
A Brooklyn woman was sentenced to 20 years to life in prison on Wednesday for drowning her three young children in the ocean near Coney Island's famed boardwalk.
The 35-year-old mother of three was found guilty in March on all counts following a weekslong trial.
A licensed drug addiction counselor was sentenced Wednesday to 24 months in prison for helping supply the ketamine that killed Matthew Perry.
Investigators allege he planned the attack for a year and was driven by a desire "to kill all Zionist people."