HLN

Investigators on both sides of the Atlantic seek links between three homicides that look like professional executions.

Who put a bomb in the home of a 29-year-old woman and killed her?

A killer tried to destroy everything which could link them to the crime; but in doing so, they inadvertently created new forensic evidence, evidence which came to light using a technique never before used in a criminal investigation.

After a tycoon's wife is found dead in her SUV submerged in a half-frozen creek, police begin to suspect it wasn't an accident.

A Russian immigrant is found dead and a strange phone call to his office is the only lead investigators have.

Physical evidence initially condemns a prime suspect to a double homicide, but DNA from a discarded spoon points to another.

A mother is determined to discover what happened when her daughter is injured in a hit-and-run accident.

Forensic science and deductive reasoning determine what happened to a mother and daughter while they were on a shopping spree.

The anchors share the latest stories about significant events that take place across the world and interview prominent figures.

The anchors share the latest stories about significant events that take place across the world and interview prominent figures.

The anchors share the latest stories about significant events that take place across the world and interview prominent figures.

Police link a clump of hair discovered in an isolated area with a woman who disappeared 20 years ago.

A news anchor is shot to death outside her home in an apparent crime of passion by a fan; a police dog tracks the scent of the killer back to the crime scene.

A fire, caused by an unattended cigarette, kills the estranged wife of a police officer; forensic scientists discover that the cause is far more complicated.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

CNN Chief Legal Analyst and anchor Laura Coates leads comprehensive live coverage and expert legal analysis of the trial of Duane Davis -- accused of orchestrating the infamous, long-unsolved murder of hip-hop icon Tupac Shakur in 1996.

Investigators search the world of high rollers and offshore betting to solve the first triple homicide in Verona, Wisc.

Police search every apartment building in town when the body of a young girl found on an isolated farm holds a set of keys but no ID.

A man denies killing a pedestrian in hit-and-run, claiming he sold the car in question; authorities track down the car to find critical evidence.

Three years later, a second autopsy determines who's right when a medical examiner and detectives disagree on the cause of death.

Hit-and-run boating accident that kills a popular young man causes investigators to search for one boat out of thousands.

A woman is found dead on her bedroom floor, the only clue is a bloodstained sheet; breakthrough forensics enable police to identify the killer.

A young man is killed in a mysterious car crash, but the evidence at the scene lead investigators to believe it is not an accident; forensic science reveals what really happens, and the truth devastates three families.

A woman is found dead, police use blood evidence and computer forensics to convince a jury that the murderer is guilty.

When an elderly woman dies in an apparent robbery-homicide, evidence suggests the suspect broke out of the house rather than breaking in.

Wealthy man is shot dead while his wife is forced to open their hidden safe, but they couldn't be identified because they were wearing ski masks.

The bomb was constructed to cause as much damage as possible, and it did, killing the victim with deadly force and flame; a painstaking search yielded tiny clues, which identified the killer as surely as if he'd signed them.

A twelve-year-old girl claims that she was abducted and sexually assaulted; her story seems unbelievable until police discover fibers on her clothing.