72 Hours: True Crime

A killer who believed he had gotten away with murder is caught with the use of DNA.

The killer of a homeless man is caught due to the determination of police and scientists.

Behavioral profiling helps detectives zero in on an arsonist.

A sexual predator is caught through the use of behavioral and geographical profiling.

An astute nurse and a team of detectives capture the person responsible for a number of deaths in an Indiana intensive care unit.

A serial bomber is captured after eight years.