(CNN) -- A woman whose body was found in the crawl space of an Oregon home -- the mother of a newborn who also died -- died from "homicidal violence," the state's deputy medical examiner said Monday. Police released a photo of Korena Roberts, who is charged with murder. An autopsy showed causes of 21-year-old Heather Snively's death included blunt-force trauma and "sharp-force injuries," Dr. Christopher Young said. Sharp-force injuries mean cut or stab wounds. Young said additional information will not be released until test results are received. Korena Roberts, 28, is charged with murder in Snively's death. She was scheduled to appear in court Monday afternoon.
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NEW: Heather Snively's baby was cut from her stomach, authorities say
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Korena Roberts, 28, is charged with murder in Snively's death
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Cops find Snively's body in Roberts' crawl space
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Police called to Roberts' house for report of baby in distress; baby couldn't be saved
@placeholder and the baby were taken to a hospital after medics noticed a lot of blood at the home, officials said.