ROSEVILLE (CBS13) — A toddler was found nearly naked on a Roseville street, alone and afraid in the middle of the night.

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Where the child was living had police just as worried. Now the child’s mom, grandmother and uncle are facing charges.

Charmaine Frost, who neighbors say is the child’s grandmother, is accused of putting a child in filthy conditions, but she came home and didn’t want to talk to CBS13.

But her neighbors were.

“About 4 in the morning we just heard wailing.”

David, who didn’t want us to use his last name, would come out to see a child wandering on his Roseville road.

“I just saw this little baby walking across the street.”

Upset, he says the child had no clothes from the waist down. Picking the baby up, he says he’d see a door open at this home on the 300 block of Summergrove Circle. He walked up and was shocked.

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“I’ve never seen anything like it,” he said. “There was debris everywhere, clothes, it looked like food, perhaps even animal feces.”

He knew he needed police. Roseville officers would eventually confirm the baby was from this home even officers called filthy inside.

The investigators would arrest Charmaine Frost, as well as the baby’s uncle, Thomas Frost, and the baby’s mother, Crystal Frost.

David’s girlfriend says no one would expect it looking from the street.

“To even think that somebody was living like that in this neighborhood—it’s a pretty good neighborhood.”

Officers called the home “hazardous for a child” with soiled diapers and animal feces.

“You know, I can smell it right now. I can almost taste it.”

CBS13 has learned the baby’s grandmother is actually trained to keep people healthy as a registered nurse.

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“Hopefully she is better in the hospital environment than she is in the home environment.”