On Thursday friends and family will mourn a former -- and headline making -- Brooklyn principal who has died under mysterious circumstances.

"Sister" Vergie Muhammad, 80, was found dead on Sept. 11 in her East Elmhurst home.

Her husband, El Hajj, said he didn't call 911 until hours after she fell out of bed repeatedly, the crimimal complaint said.

El Hajj, who was charged with criminally negligent homicide told police that brought his wife back to the bed by "dragging her arms and yanking her."

His wife kept falling off the bed, the complaint continued, and instead of calling 911, her husband repeatedly tried to yank her back up and prop her up.

El Hajj, who couldn't be reached for comment, is due back in court on Sept. 27 and the investigation is ongoing.

Vergie Muhammad, who retired from the school system in 1995, made news several times in the '90s when she would publicly butt heads with the Board of Education over her alleged mismanagement and corruption while as principal at IS 320 in Crown Heights.

"I'm too tired to curse you out," she once told a Newsday reporter during one of her famous retorts in 1994.

During Vergie Muhammad's nine-year tenure at the Brooklyn middle school she had a rocky relationship with her staff, which had one of the city's highest turnover rates

Her most famous tiff was in 1994 when then Schools Chancellor Ramon Cortines publicly scolded her when Muhammad used poor grammar to defend allegations that she sold school textbooks and equipment to private schools.

The principal not only denied the allegations but also showed storage closets with books.

Her funeral is scheduled for Thursday at the Cobbs Funeral Chapels in East Elmhurst. She will be buried at St. Michael's Cemetery on Friday.