CHAPTER TEN The more Jessie studied the crime scene, the more certain she was that Penelope had known the killer. As she walked around the kitchen, she tried to employ the tactics she’d just learned in her behavioral science seminars at the FBI training academy. Her instructors had preached one overriding principle: let the evidence guide your conclusions. It seemed like logical advice but it required a mindset change for Jessie. She had always let her instincts be her guide. She seemed to have a gift for reading people, at least people she didn’t know. But she’d come to realize she’d gotten too dependent on that skill. On more than one occasion, she’d ignored evidence that could have helped her solve a case because her gut was sending her down a different path. She realized she was es