The First 48 Presents Critical Minutes

Homicide suspects go on the run to avoid the consequences of their actions; the police search for two gunmen responsible for a mass shooting; investigators worry an escaped convict might flee the country; a robbery goes awry.

Investigators look into the deaths of two men who were brutally attacked with a hammer while they were asleep; a detective hopes to solve a triple homicide; a detective ventures into the world of homelessness to find a killer.

Detectives use DNA evidence to search for the person responsible for raping and murdering a homeless woman; investigators claim that a footprint located on the victim's back disproves the suspect's claims of self-defense; a grandfather is shot.