the next day after osmanovic's interrogation was completed, detective cole received some crucial information about that recording. >> we learned of the existence of the tape from jasmin possible location. >> the location was osmanovic's home. his ex-girlfriend had gotten a hold of it and turned the recording over to osmanovic's sister. the sister then gave the tape to an attorney. >> we got a call from a defense attorney in jacksonville and he said we have something you might be interested in. finally, investigators had the tape. and when they pressed play. >> room 207. >> they couldn't believe what they heard. that recording led sheriff david shoar to call a press conference. he had a major announcement. >> as our investigation has developed, we arrested quinn gray. >> coming up, just what was on that tape? >> had quinn been the victim everyone thought? when "dateline" continues. ♪ ♪ cess, digital id cards, they can even pay their bill- (beep) bill has joined the call. hey bill, we're just- phone: hi guys, bill here. do we have julia on the line too? 'k, well we'll just- phone: hey sorry. i had you muted. well yea let's just- phone: so what i was thinking- ok well w