>> reporter: they said he was frantic. they said he was instructive as all the neighbors tried to help with that cpr. they said though as he had his head buried on top of michelle's mouth, allegedly giving her cpr, he would then stop and raise his hands and say, why did you have that surgery? what about those medications." one witness the officer one of the first responders said that he was absolutely erratic and that he was concerned for his own safety thinking he had to defend himself at some point because dr. mcneal was so frantic. now, the other side to that is, this is a man that is losing his wife. and although he had that other life, he's still losing the mother of his eight children. >> were the witness accounts consistent with how they found michelle in the bathtub? >> reporter: they really were. all of the neighbors said that when they got there that michelle's face was next to the faucet in the bathtub and her feet were laid out to the end of the bathtub. but here's what could be significant. the prosecution has dr. joshua