Montell Ross and Jayden Ugwuh, ages 8 and 9, were killed while they lied in their beds when someone shot up their home in August 2016. Police said they have not received a single tip in the case.

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.