Federal prosecutors are calling his employees before a grand jury investigating the fatal beating of an inmate.
Those who inflicted the fatal beating fled and there have been no arrests.
The final, fatal beating apparently came after she took yogurt from the refrigerator, the prosecutor said.
A Brooklyn man charged with his companion in the fatal beating of her 5-year-old daughter pleaded not guilty yesterday.
"She got on my nerves," Robert Murray told the police after the fatal beating.
Graphic pictures of his injuries after a fatal beating allegedly by police quickly appeared online.
Authorities said she stood by while her daughter lay on the floor, naked and unconscious, after the fatal beating.
She then pleaded guilty to manslaughter for his fatal beating.
Woman gets 7 1/2 to 15 years for fatal beating of son.
The men were indicted last July, two years after the fatal beating.