esfehani was arrested. although he denied committing the murder, hair samples were sent from iran to michigan. the hair samples, said to have come from esfehani, sent by the police were examined and found not to be similar to the hairs found on the victim's body. but something strange was going on because the hairs said to be esfehani's did not even match the hairs taken from his own hair brush, left behind in his hasty departure from michigan. did that seem fishy to you? >> i would have rather been there when the hair samples were taken from mr. esfehani, but when he's in iran and we're here, you do the best you can. >> because the hairs didn't match and police had little other evidence against him, five months after cheryl miller's murder, abbass esfehani was no longer considered the prime suspect by authorities. he never returned to the united states. how frustrating was that for you as a detective at the time? >> very frustrating. because to actually have him probably would have shortened this investiga