hudock estimated that betty wolsieffer had been murdered between 2:30 and 4:30 in the morning. two to four hours before glen said he heard the intruder. and there was another inconsistency. doctors at mercy hospital noticed injuries on the back of glen wolsieffer's neck, even though he said he was strangled from behind. >> it just could not happen that way. the only way you could get that injury to the back of your neck is if somebody pulled from the front. >> friends told investigators that glen often wore a gold chain around his neck. >> if he was involved in a fight with his wife where the wife would have been, say, in the bed underneath him and he was on top of her in that position, he would have sustained those type injuries from that piece of jewelry. >> that type of force would have damaged the splenius capitis muscles, two long muscles that support the head, the same injury emergency room doctors diagnosed in glenn wolsieffer after his wife's murder. when investigators dug a little deeper into glen wolsieffer's dental practice, they discovered his relationship with his