Recent news events made me think of this. All I remember is one victim was out of it for a day, the perpetrator drove her back to her place and saw the specific apartment in which she lived which worried her. Was he caught and convicted, and what was his sentence? Thanks.

http://unsolvedmysteries.wikia.com/wiki/Dr._Kenneth_Frank

http://unsolvedmysteries.wikia.com/wiki/Dr._Kenneth_Frank

Thanks! I remember Robert Stack calling him "an evil man." He said it so kewl!