Derryle Humbird

He was a 53-year-old man who worked 6 days a week and spent much of the rest of his time with his daughter, granddaughter and friends. Police found him on his couch with his head smashed in. Despite two tips, police are left with very little to go on and friends and family left in the dark. About 40 percent of the murder cases in Kansas City are unsolved. Many of those cases are considered cold. FOX4 Crime Files takes an in-depth look at some of these cases, each one representing a life lost, and loved ones searching for answers.