Residents told police they saw a man, believed to be the woman's boyfriend, flee the home and get onto a city transit bus. Police tracked down the bus and conducted a traffic stop at 4th Street and Waterman Avenue, not far from the home. Officers boarded the bus and found the suspect with a 1-year-old boy.
The suspect, 23-year-old Kim Davis, was taken into custody without incident and was being questioned by homicide detectives.
Police said the boy is the biological child of the suspect and the victim. He was not injured during the incident.
Police were trying to locate other family members to turn the boy over to, but if they can't find anyone he will be taken to Child Protective Services.
The name of the victim was withheld pending notification of family. An autopsy will be conducted to determine the cause of death.
Anyone with information was urged to contact Detective Mike Smith or Sergeant Doug Hubbard at Sheriff's Department Homicide at (909) 387-3589.