( CNN ) -- Before the distressing 911 call even connects , the caller breathes heavily . `` I need an ambulance . Oh my God . Please hurry , '' the caller says . That 's the agitated voice of Michael Tuller , the owner of Wild Cat Haven Sanctuary in Clackamas County , Oregon , a private place that houses some 60 big cats . He discovered the lifeless body of head keeper Renee Radziwon-Chapman , 36 , inside an enclosure Saturday . The 911 tapes , released this week , tell of the horror . `` I have a keeper at Wild Cat Haven , '' Tuller yells . `` I think she 's dead . '' He sounds frenzied and is heard working feverishly , apparently trying to get the muscular cats away from the fallen woman 's body . `` Oh my God , Oh my God , oh my God , Renee . Oh my God , Renee . Oh my God ... . get ! Oh my God , oh my God , '' he yells . The dispatcher seems concerned about Tuller . `` Sir , are you in a safe position to go in by yourself ? '' the dispatcher asks . `` I 'm here , I 'm here , '' he says . `` OK , we do n't want you to get injured though , we do n't want you to get hurt , '' the dispatcher says . `` Yeah , I hear what you 're saying , '' Tuller says . Then he turns his attention back on shooing the wildcats away . `` Get out of here . Get . Go . Go . Go . Go . Oh my God , Renee . Oh my God Renee , Oh my God . Oh my God , '' he yells . The dispatcher tries to assess the situation . `` What kind of injuries does she have ? '' The dispatcher says . `` Dammit Renee ! '' Tuller yells . It may have been at this point that Tuller fully realized that it was too late . The mother of a young daughter was mauled to death by a cougar . For some reason , against policy , she had been in the enclosure by herself , the sanctuary has said . Skateboarder repels cougar attack . `` We have help on the way to you ... have you gotten , are you in the enclosure right now ? '' the dispatcher says . `` I 'm back out , '' Tuller says . `` Is your friend still in the enclosure ? '' `` I got her out , '' Tuller says . `` OK , can we try CPR ? '' the dispatcher asks . `` No , no , '' Tuller says resolutely . `` Do you think she 's beyond help ? '' the dispatcher questions . `` That 's a ( expletive ) question to ask but yes , I do , '' Tuller says . `` OK , I 'm sorry sir , '' the dispatcher says . `` Can I send somebody that way for you to talk to ? Like a chaplain or something ? '' `` I do n't know , '' Tuller screams hysterically . `` I do n't know ! '' The sanctuary has called in an outside expert to investigate the death and the facility 's safety policies of the place that is not open to the public . The state is also investigating . Oklahoma zoo tiger mauls employee 's arm .
Renee Radziwon-Chapman was killed by a cougar Saturday . She was the head keeper at a big cat sanctuary in Oregon . The animal had been spotted earlier that day on private property near her home, but she didn't report it to authorities until Sunday after seeing photos of the dead animal.