The First 48 S09E10 - Heart of Gold / Last Breath

In Louisville, a 33-year-old woman collapses in the street after being stabbed multiple times. When detectives arrive at the crime scene there's a startling discovery--they're familiar with the victim. Now, Sgt. Brian Nunn and Det. Brenda Wescott must reach out to witnesses and friends of the victim to track down her killer.