dr. catellier, had come to the same conclusion in her original report.he cause of death, undetermined. >> well, is there anything in the doctor's original autopsy report, that you take issue or disagree with? >> no sir, i actually agree with it wholeheartedly. >> at trial, dr. catellier testified that she favors homicide. would you agree with that? >> no sir, i would respectfully disagree with that. >> the defense conclusion -- it wasn't alex who killed emily, it was what was in those pill bottles. >> this is the marital issue. this is what he screamed about, and he howled about. but no one would listen. do justice to alex fazzino. find him not guilty. >> jurors would now have to decide if alex fazzino was a killer, or a wrongly accused husband who had tried only to save his wife. >> the only thing certain in that iowa courtroom was that tensions were running high between the two families, extremely high. would alex walk free or spend his life in prison for murder? >>> coming up -- >> you prepared for a guilty verdict? >> yeah. >> two families on edge. f

dr. catellier testified that she favors homicide. would you agree with that?ir, i would respectfully disagree with that. >> reporter: the defense conclusion, it wasn't alex who killed emily, it was what was in those pill bottles. >> this is the marital issue. this is what he screamed about, and he howled about. but no one would listen. do justice to alex fazzino. find him not guilty. >> reporter: jurors would now have to decide if alex fazzino was a killer, or a wrongly accused husband who had tried only to save his wife. >> reporter: the only thing certain in that iowa courtroom was that tensions were running high, extremely high, would alex walk free or go to prison for murder. >> were you prepared for a guilty verdict? >> yes. >> reporter: two families on edge, four years of questions. the verdict at last. when "dateline extra" continues. ♪ ah, my poor mouth breather. allergies? stuffy nose? can't sleep? enough. take that. a breathe right nasal strip of course. imagine just put one on and pow! it instantly opens your nose up to 38% more than allergy medicin