The medical examiner says Rebecca Knox was stabbed in the chest, and her death is considered a homicide.
Police found Knox after they were called to an apartment in southeast Denver at about 6:15 p.m. Wednesday. The woman was pronounced dead at a hospital.
The Denver Post reports a 55-year-old man was arrested at the scene, but police have not released any information about his relationship, if any, with Knox.
(Copyright 2012 by The Associated Press. All Rights Reserved.)