What is the deal with the ring? Why would finding the ring lead to Katelyn? Was she taking it off, threatening to get rid of it, or was it so unusual that it would be known anywhere?
And why call 911 on the way back the 2nd time to her apartment? He had already been there... and apparently told operator he was on his way back there...why not call the first time? Why did he leave and where did he go?
Why are all of her friends and family leaving him out there all alone to flail away in public with all of his contradictions and confusions?