Pradeline Delinois was found unresponsive in the 5100 block of Cumberland Street on Aug. 18, according to Prince George's County police.
Delinois was rushed to a hospital in Washington DC, where she was pronounced dead a short time later, officials said.
An autopsy revealed that Delinois was killed by blunt force trauma, and police have ruled her death a homicide.
The Prince George’s County Police Department investigates all homicides in the town of Capitol Heights, according to authorities.
If anyone has information relevant to this investigation, they are asked to please call detectives at 301-516-2512.
Callers wishing to remain anonymous may call Crime Solvers at 1-866-411-TIPS (8477).
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