By JEFF MAYES
Chicago Sun-Times Wire

It was another violent week in Chicago, with at least 10 people killed last week, including three in the West Austin neighborhood alone.
The death toll included a 2-month-old girl whose death in the Humboldt Park neighborhood was ruled a homicide by child abuse; and a popular local rapper killed after getting into a fight on a CTA Green Line train near downtown.
Family members took the baby, Aliya Acosta, to a hospital on Jan. 17 after she became unresponsive in her home, according to Chicago Police and the Cook County medical examiner’s office. She was later transferred to Lurie Children’s Hospital, where she was pronounced dead at 2:04 a.m. Thursday.
An autopsy Friday found she died from multiple injuries caused by child abuse, and the death was ruled a homicide, according to the medical examiner’s office.
An Illinois Department of Children and Family Services spokeswoman said the agency is investigating allegations of abuse against the girl’s mother, father and other caregivers; while Area North detectives are conducting a death investigation.
The rapper was stabbed to death Wednesday afternoon near Metra tracks in the Fulton River District. Walter Long Jr., 24, got into a fight with someone who pulled out a sharp object about 3:20 p.m. in the 400 block of North Clinton, police and the medical examiner’s office said.
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