She was a divorced mother excited about her next chapter in life. Then, five gunshots shattered her plans. Proving who murdered Joan Lockwood was a daunting task for police. An ominous killer was still out there and her family was living in fear. 43:54

Diane McIver was a successful businesswoman who enjoyed a lavish lifestyle with her husband. Then she was gone. It was a mystery riddled with privilege and power, but investigators needed to answer a crucial question: was this an accident or murder? 43:54

Sandra Galas was born and raised in paradise. So how did something so ugly happen there? Police investigated two men in Sandra’s life, but the case went cold. Her father refused to give up, relentlessly pursuing the truth for more than a decade. 43:54

Kelli Bordeaux was just starting what she hoped to be a long career in the military, but fate had other plans. When she vanished, friends and family launched a frantic search, but it was stranger hell-bent on justice who uncovered the ugly truth. 43:54

Keith Reed was a highly-regarded school superintendent. When he didn’t show up at an out-of-town conference, it set off alarm bells. Investigators took a hard look at his love life for clues and made a startling discovery. 43:54

It was just before Halloween. Joel Lovelien and his fiancé headed to a local bar packed with people in costume. Then, Joel stepped outside and walked into a troubling mystery. Police rounded up potential suspects, but could they unmask a killer? 43:54