Police investigating the 2016 rape and murder of a 19-year-old medical student were unable to search the iPhone of suspect Hussein Khavari, an Afghan refugee who declined to give them his password. The investigators gained access to the phone via a private company in Munich, and went through Apple's health app data to discern what kinds of activities Khavari participated in on the day of the murder. The app identified the bulk of his activity as "climbing stairs". An investigator of similar…