agent joe boyer found the van in washington state and had it taken apart, piece by piece, and shipped to an fbi lab across the country. >> we knew that if we were going to prove that joel courtney was responsible for this, the best chance we had was to find evidence of brooke being in the van. >> the wilberger family was informed. they wanted to know the truth, but were almost afraid to discover more about joel courtney and his crimes. >> i googled him and passed it on to you. >> you googled him? >> sure, yeah. >> what was it like to see his face? >> i just looked at him and at that point was just a numb feeling. even then, i didn't feel hatred. it was just -- i was all about getting brooke back. i want to know what you did and where she is. >> but neither the wilbergers nor investigators nor courtney's sister could ever have guessed how they would get the answer to the question where was brooke? >>> coming up, evidence finally implicates joel courtney in brooke's kidnapping. >> that's the smoking gun. that's the nail in the coffin. >> but will that help bring brooke home? life of now

agent joe boyer found the van in washington state and had it taken apart, piece by piece, and shipped to an fbi lab across the country. >> we knew that if we were going to prove that joel courtney was responsible for this, the best chance we had was to find evidence of brooke being in the van. >> the wilberger family was informed. they wanted to know the truth, but were almost afraid to discover more about joel courtney and his crimes. >> i googled him and passed it on to you. >> you googled him? >> sure, yeah. >> what was it like to see his face? >> i just looked at him and at that point was just a numb feeling. even then, i didn't feel hatred. it was just -- i was all about getting brooke back. i want to know what you did and where she is. >> but neither the wilbergers nor investigators nor courtney's sister could ever have guessed how they would get the answer to the question where was brooke? >>> coming up, evidence finally implicates joel courtney in brooke's kidnapping. >> that's the smoking gun. that's the nail in the coffin. >> but will that help bring brooke home? s on optimi

supervisory special agent joe boyers' first question, had brooke been taken by someone who lived at thement complex? and could that person be among the tens of thousands of oregon state students who would soon be leaving town for the summer? agent boyer asked fbi profilers for help. >> they asked us, do you have a crime scene? no, we don't, other than flip-flops in a parking lot. do you have any witnesses? no, we don't. do you have a vehicle description? no, we don't. do you have a body? no, we don't. they said, frankly, there's very little we could do for you at this point. >> with so little evidence, investigators found themselves thinking back to another crime, a crime many here in corvallis barely recall. on another day in may, nearly 30 years to the day and one mile away from where brooke disappeared, a young oregon state student vanished. it wasn't until her body was discovered and her killer caught that people here realized this town had been visited by one of america's most notorious serial killers, ted bundy. authorities in corvallis wondered if there was now another sexual pre