This might of been on Unsolved Mysteries or America's Most Wanted. It was about a young couple who moved from California to Las Vegas. His wife was pregnant. He had a job at a 7/11 store and was working the graveyard shift. His wife stopped in for a visit and then an hour or two later, these two men came in dressed like woman and robbed him at gunpoint. When they left, they shot and killed the pregnant wife. Were they caught?

This might of been on Unsolved Mysteries or America's Most Wanted. It was about a young couple who moved from California to Las Vegas. His wife was pregnant. He had a job at a 7/11 store and was working the graveyard shift. His wife stopped in for a visit and then an hour or two later, these two men came in dressed like woman and robbed him at gunpoint. When they left, they shot and killed the pregnant wife. Were they caught?

I remember that case, but it was never on UM. It was, however, featured on AMW. There are no updates on the case, or at least none that I am aware of.