S07 E51 — Dinner and a Movie
Time of death becomes pivotal when a pregnant woman is found murdered in her air-conditioned bedroom.

S08 E01 — A Wrong Foot
An obscure print found at a crime scene.

S08 E02 — Order Up
A diner in a small town, an endocrinologist and a forensic botanist help destroy a prime suspect's alibi.

S08 E03 — When the Dust Settled
Neighbors do not hear the gunshots when a union official is killed in his home.

S08 E06 — A Welcome Intrusion
A man tells police he shot an intruder who murdered his wife; forensic evidence leads police to re-examine the man's motives.

S08 E04 — Within Arm's Reach
A police officer claims his estranged wife's shooting death was a suicide, but investigators think it was a murder.

S06 E01 — Missing in Time
A tiny clue inside a suspect's watchband and a popular television show help solve the case of a woman's disappearance.

S06 E02 — Missing Pearl
One year after Maine resident Pearl A. Bruns' disappearance, forensic technology helps to find her body and determine who was responsible for her death.

S06 E03 — Man's Best Friend?
When 4-year-old April Renee Tucker is found dead in her backyard, her parents tell the police that neighborhood dogs attacked and killed her, but the injuries on her body don't match their account of what happened.

S06 E04 — Hand Delivered
San Diego police investigate the murder of a missing person whose hands turn up in a dumpster; an anonymous letter, containing details only the killer would know, offers clues to solving the case.

S06 E05 — Death Play
One year after her father's death, a teen's role in a high school production of "Hamlet" causes her to reveal the chilling truth behind her family's tragedy.

S06 E06 — Fire Dot Com
A mother puts her hope on the internet and an independent investigation to clear her name after authorities charge her with murdering her 17-month-old son in a fire considered to be intentionally set.

S06 E07 — Mistaken for Dead
When a man dies unexpectedly in the office of a noted California doctor, police begin what they think will be a routine investigation, but discoveries of false identities and insurance fraud raise questions about the doctor's role.

S06 E08 — Frozen Evidence
A forensic scientist uses his skills to preserve a footprint left in snow to help authorities nab two men suspected of robbing an Ontario couple and shooting the husband in the head.

S06 E09 — Soft Touch
Fingerprints taken from a piece of cloth help solve the rape and murder of a 22-year-old woman in Henrico County, Va.

S06 E10 — Church Disappearance
The FBI profiles a suspect in the kidnapping and murder of a 6-year-old girl during an evening church service; a witness leads authorities to the likely killer, but then becomes a victim herself.

S06 E11 — Photo Finish
Photographs found in a dumpster lead to the killer of Los Angeles model Linda Sobek; the man claims he did not intentionally kill her despite evidence to the contrary.

S06 E12 — Whodunit
A murder mystery theater performance in Easton, Md., turns into a real-life mystery when a body is found after the performance ends.

S06 E13 — Horse Play
When a woman dies in a horseback riding accident, police uncover a web of lies in her husband's background after his suspicious behavior prompts a closer look.

S06 E14 — Treads and Threads
A serial killer in Tampa, Fla., taunts police by strangling prostitutes and leaving their bodies in plain sight, but tire marks and fibers lead to the culprit.

S06 E15 — Killer's Cattle Log
Missouri police are thrust into a bizarre web of homeless drifters and cattle auctions when they are called to retrieve a dead body.

S06 E16 — Skin of Her Teeth
A killer wants to outwit the police and keep the identity of his victim secret so he removes the teeth; however, lab tests on the skull reveal not just the horrific nature of the murder, but the identity of the victim too.

S06 E17 — Line of Fire
When a fundamentalist group is accused of robbing banks, authorities know they are dealing with experienced criminals and overwhelming evidence, but the defense is very well-funded.

S06 E18 — Bad Blood
When a young doctor is accused of sedating and sexually assaulting two of his female patients, DNA tests show him to be innocent, but the women persist with their claims; seven years later, a private investigation leads to a surprising discovery.

S06 E19 — Pure Evil
The search for the killer of two teenagers in Texas shows a behavioral study on how most serial killers also have a history of abusing animals.

S06 E20 — Root of All Evil
When a farmer's wife disappears, the tests of a plant pathologist and a dendrochronologist lead to a surprising revelation.

S06 E21 — Where the Blood Drops
A son who is convinced of his mother's innocence in the death of his father enrolls in law school to try and clear her name.

S06 E23 — Sibling Rivalry
The pornography empire cultivated by brothers Artie and Jim Mitchell crumbles when one turns up dead and his brother confesses to shooting him; investigators question whether the shooting was premeditated.

S06 E24 — Pastoral Care
When prison guard Donna Payant's body is discovered at a landfill, a medical examiner uses a "signature" clue to link her death to a murder the same examiner investigated 10 years earlier.

S06 E25 — Bagging a Killer
When a 9-year-old girl vanishes on her way to school, the entire community helps with the search; detectives believe her mother may be involved, and a hidden fingerprint seals the case.

S06 E26 — Double Trouble
The investigation of a murder case in New Jersey is stalled until a similar attack occurs on a state trooper in Maine.

S06 E27 — Cats, Flies and Snapshots
A young woman goes missing without leaving many clues, but the advanced technology on offer makes it possible for cat hairs and insects to help build an image of the abductor.

S06 E28 — Naked Justice
Blood spatter analysis and an investigation lead police to the truth when a pregnant woman is found dead in her home.

S06 E29 — Treading Not So Lightly
A mother is determined to discover what happened when her daughter is injured in a hit-and-run accident.

S09 E08 — Bad Medicine
When a woman's bone marrow test reveals arsenic poisoning, investigators try to determine if it is due to groundwater contamination or something more sinister.

S09 E10 — Stick 'em Up
A missing bank president's body is found floating in a lake; the duct tape used in binding him to a chair helps solve the crime.

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.

S08 E05 — Private Thoughts
When firefighters find a family dead inside their home, it appears to be a murder-suicide; clues at the scene lead investigators to believe otherwise.

S08 E07 — Brotherhoods
A couple's murder leads investigators into the world of white supremacists and a string of hate crimes.

S08 E08 — Hair of the Dog
A rare gun and a victim's beloved dog help investigators trying to solve a multi-year-long murder case where most of the witnesses were admitted drug users.

S08 E09 — Breaking News
A search in Virginia's DNA databank reveals the identity of a news producer's murderer.

S08 E10 — All the World's a Stage
A homicide detective claims his wife accidentally shot herself in the head, but the evidence indicates otherwise.

S08 E11 — The Big Chill
Officials probe the death of a woman investigating the possible side effects of the drug she was prescribed for bipolar disorder.