Erika Menendez, 33, pleaded guilty to first-degree manslaughter in the death of 46-year-old Sunando Sen.
Erika Menendez allegedly admitted to pushing Sunando Sen, 46, to his death in front of a 7 train.
Erika Menendez will be re-examined by a defense psychiatrist.
Erika Menendez was transferred to Elmhurst Hospital's prison ward for women with mental illness.
Naeem Davis said he didn't mean to push Ki-Suck Han onto the Q train tracks to his death.
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