This tragedy is sadly similar to another child's death in the same community.
"I saw a bunch of cop cars, they were talking to a guy, I didn't think anything of it," said Johnie Kosta.
EXCLUSIVE: CA mother warns other families after 18-year-old son dies of fentanyl overdose
EXCLUSIVE: CA mom warns others after son dies of fentanyl overdose
Neighbor Johnie Kosta later found out Monday's police response to an apartment on Sonoma Avenue was nothing short of a tragedy.
"Mom had actually called 911, our dispatchers sent multiple officers and medical services," said Santa Rosa Police Sergeant Christopher Mahurin.
Police say they found 15-month-old Charlotte Frostick unresponsive near a substance believed to be fentanyl which was found in her parent's bedroom.
"They shared one bed where the child also slept, we found paraphernalia narcotics in the bed as well as other parts of the bedroom," Mahurin added.
EXCLUSIVE: Mother reacts to murder charge against teen accused in her 12-year-old's fatal overdose
EXCLUSIVE: Mom reacts to murder charge in daughter's overdose
Little Charlotte was later pronounced dead at a hospital. Her parents, 26-year-old Evan Frostick and 23-year-old Madison Bernard were arrested.
Both parents were booked into the Sonoma County jail, charged with felony child cruelty resulting in death. Both declined our request for an interview.
This case is sadly similar to one in 2019 where a Santa Rosa father and his 13-month-old son were found dead of an accidental fentanyl overdose. Several drug dealers would later be charged by federal prosecutors.
Police say fentanyl has reached crisis proportions on the street. In the past year alone, 17 people have died from fentanyl overdoses in Sonoma County, 55 from other fentanyl-laced drugs.
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"Even though we are seeing methamphetamine and other drugs, we're seeing it laced with fentanyl, that's what's causing the overdoses.
Police urge everyone to keep drugs away from children. Charlotte's parents could face additional charges if toxicology tests and autopsy reports indicate the presence of fentanyl.