Ex-friend: Iowa murder suspect showed no emotion

Tracey Richter, left, listens to testimony Thursday, Oct. 27, 2011, during her first-degree murder trial in Webster County District Court in Fort Dodge, Iowa. Richter is on trial for the shooting death of Dustin Wehde at her Early, Iowa home on Dec. 13, 2001. Defense attorney Robert Powers is at right. (AP Photo/Hans Madsen, Pool)

October 28, 2011 10:32:48 AM PDT
Prosecutors called their star witness Friday in the first-degree murder trial of a woman who claims she killed an Iowa neighbor in self-defense: a former close friend who initially believed her account but came forward a decade later to provide key evidence against her.