VIENNA -- Austrian police say that a 25-year old American woman whose body was found in her Vienna apartment suffocated.
But they declined to say Friday what led to her suffocation pending continuing investigations and results of toxicological tests expected within the next few days.
U.S. authorities have identified her as Lauren Mann from Colorado.
Police and firefighters who forced open her door Tuesday evening found the half-naked body on a mattress in the bedroom. Mann had been working as an au pair, and police were alerted by Mann's employer after she did not show up for work.
Mann graduated in 2012 from the University of Colorado-Boulder's College of Music.