No such thing as 'deserved killing,' jury told

• Story Highlights
• Eric McLean, 33, admits killing his teacher wife's teen lover
  
• Jury will decide whether slaying was premeditated, or crime of passion
  
• McLean allegedly shot Sean Powell, 18, with high powered rifle
  
• Slain teen's mother calls defendant's wife a "master manipulator"
  
• Next Article in Crime »