Police said they have not made an arrest in the murder of Nicole Fitts and the disappearance of her daughter.
Little Arianna Fitts is now the focus of a statewide search and we're learning more about the days and months leading up to her mom's death.
WATCH VIDEO: SF police have no concrete leads after mother killed, toddler missing
The toddler was reported missing after her mother was found dead and her body brutally beaten.
Police sources told ABC7 News that detectives are questioning many persons of interest in the case including, a pastor from Oakland who may have known the mother and child. "The staff is grieving, we are terribly sorry," San Francisco Homeless Prenatal Program Director Martha Ryan said.
Ryan was stunned to hear about Fitt's murder. "Nikki was a lovely woman and we just hope and pray that her daughter, Arianna comes back safely," Ryan said.
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Relatives said they haven't seen the toddler since February.
Ryan said Fitts came to the prenatal program last Fall to take parenting classes. "We help them get support so they can be sustainable and self sufficient without our help and that's what Nikki had done, she had become self sufficient," Ryan said.
Fitts was working at the Best Buy on Harrison Street in San Francisco.
Her friend and co-worker Dave Spencer said she was often emotional at work. "I saw her crying in the hallway, like I said I didn't want to get into her business. I said 'are you OK?' She was having a hard time," he said.
Spencer said Nicole told him she was fighting for custody of her older 12-year-old daughter. "I think that was her top priority, getting custody of her child. It seemed like she was going to die trying to do that," Spencer said.
Officials are asking anyone with information about Arianna's whereabouts or this case to call 911.