I thought it was just another of Alexander's voluminous mistakes, but he retells the story as though it's clear Teddy kills booper. I take this reading as "wrong" becuase it's I think the ending is too ambiguous to make a certain interpretation (kids shriek for no reason at all...) and if I were going to see someone dying in an unfilled pool, it would have been teddy who seemed to know and accept death, not be a viscous kid murderer...Alexander has really done a poor job. I think he took easy critical paths and as a result came out seeing the author as having spent his talent and lusting over young girls...I believe Salinger was a master in understanding ambiguity and appreciated his sublties too much to be so blunt as Alexander. Sorry, I'm still on my first pencil-less reading and had to vent. will