ORANGE COUNTY, Fla. -

Pastor Diedra Cobaris says 29-year-old Carllans Fils-Aime was the first in her family to graduate college, she worked part-time as an assistant at her church and loved to take care of her nephews, ages 8 and 6.

On Monday, deputies confirmed Fils-Aime was found dead after a fire in a Pine Hills apartment last week.

[RELATED: 3 bodies found after Pine Hills apartment fire]

Cobaris said Fils-Aime was taking care of her sister's children while she was visiting family in Haiti.

Family members told Local 6 Fils-Aime's nephews, Jaques and Samuel, were also found dead inside the one-bedroom unit at the Misty Oaks Apartments.

Investigators have yet to rule on the cause of the fire, while the State Fire Marshal's Office continues its investigation.

Deputies with the Orange County Sheriff's Office are also investigating the deaths, trying to determine if the victims were killed by the fire or died before it sparked. They haven't been able to rule out either arson or an accident.

According to Cobaris, Fils-Aimes led a dance group at Impact Church of Orlando and worked full-time for FedEx.

Cobaris said deputies have interviewed the boys' father as well as the only person to survive the fire. Deputies said that man was inside when the fire started and suffered smoke inhalation, but they have not revealed what information they gathered from either interview.