Trackdown: Help find Keylon Brown's killers

A father of two is dead after gunmen ambushed him from behind and executed him. Police say he had just dropped off his family, not knowing he was going to lose his life.

Trackdown: Help find Billy Oudems' killer

A challenging case comes to Trackdown this week with the murder of a 65-year-old man sitting in a car. The clue for the public isn’t about what is seen but about what is heard.