Jack-in-the-box. her jeep getting stuck. and then chacey hearing but not seeing the shot that killed bob. >> i put the jeep in park and then i touched his face, and i yelled his name. and when i pulled my hand away, there was blood all over my hand. >> detective burke zeroed in on a key detail. if chacey touched bob the way she said, the blood should have dropped down from her hand. it did not. >> the street right there on your arm, is a blood spatter. okay? you see how spotters up your? >> yes. chacey had a pattern of blood on her arms and her shirt. a little on her face. which indicated to b...