Robbie Parker called 911 claiming to be outside of the school?

Robbie Parker said in interviews and at his press conference that he was working at the hospital in Danbury in the Newborn Intensive Care Unit. But yet a phone call was made to 911 that sounds just like him and claims to be outside of the school hearing shots?

Direct from the Sandy Hook Elementary School Shooting Reports, Media/Attachments CFS 1200704559 Exhibit 349 - StartTime 2012-12-14 14-36-48 Logger 45170321 Channel 1 Radi.wav