one was dr. hobinhad again changed his mind from homicide back to suicide. >> bogdanich: based on what your medical experts have told you, there were no defensive wounds on michelle o'connell. why is that important? >> i think the importance of that to them was that there was no struggle. >> bogdanich: because if there was a struggle, that might mean what? >> i don't know. i don't know what they thought about that. >> bogdanich: fair to say that if they had found defensive wounds, that might raise questions about whether michelle o'connell actually killed herself? >> it would depend on the nature, and that's one thing that i don't like to do is to speculate. >> narrator: king consulted with the new medical examiner who had recently taken over from dr. hobin. >> i basically inherited the case from the previous medical examiner. when i reviewed the case and all the material, it became apparent to me that this was a suicide. >> narrator: dr. predrag bulic altered the course of the investigation with a new