Hackman's Sad Demise

Nobody alive knows precisely what happened to acting great Gene Hackman and his wife, but my surmise is that he might have died of natural causes and that his wife was so distraught that she took her own life. It has been mentioned they were greatly devoted to each other, and maybe she felt she just could not go on without him. Of course, I initially wondered about carbon monoxide poisoning as had been speculated about in the press, but when tests seemed to rule that out, I thought of a bond so strong scenario.