The First 48 Presents: Critical Minutes 3x1 Forensics Dont Lie

In Tulsa, detectives rely on DNA evidence to track down the killer of a homeless woman who was raped, strangled to death, and thrown into a dumpster. In Harris County, investigators debunk a suspect’s self-defense argument based on with a footprint located on the victim’s back that suggests he was shot execution style. And back in Tulsa, detectives follow forensic clues after a beloved grandfather is gunned down.