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Forensic FilesWomen in a Louisiana city live in fear of a rapist who leaves no clues to his identity. But technology and behavioral science combine to give police a new forensic tool.

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Forensic FilesWomen in a Louisiana city live in fear of a rapist who leaves no clues to his identity. But technology and behavioral science combine to give police a new forensic tool.Restart available0Forensic FilesFor more than a year, hateful letters were sent to a school teacher in Pennsylvania. DNA analysis would eventually help seal the perpetrator's fate.

Forensic Files Season 1

• Now Playing23minThe Disappearance of Helle Crafts
• Now Playing23minThe Magic Bullet
• Now Playing23minThe House That Roared
• Now Playing23minThe Footpath Murders
• Now Playing23minPlanted Evidence
• Now Playing23minSouthside Strangler
• Now Playing23minLegionnaires' Disease
• Now Playing23minThe Wilson Murder
• Now Playing23minInsect Clues
• Now Playing23minOutbreak
• Now Playing23minThe List Murders
• Now Playing23minRaw Terror

Forensic Files Season 2

• Now Playing22minThe Common Thread
• Now Playing22minThe Dirty Deed
• Now Playing22minKiller Fog
• Now Playing22minSex, Lies and DNA
• Now Playing22minBitter Potion
• Now Playing22minThe Blood Trail
• Now Playing22minFatal Fungus
• Now Playing22minCharred Remains
• Now Playing22minSomething's Fishy
• Now Playing23minSealed with a Kiss
• Now Playing22minPostal Mortem
• Now Playing22minMicro-Clues
• Now Playing23minDeadly Parasites

Forensic Files Season 3

• Now Playing22minWithout a Trace
• Now Playing22minKnot for Everyone
• Now Playing22minThe Talking Skull
• Now Playing22minDeadly Delivery
• Now Playing22minSim'ilar Circumstances
• Now Playing22minGrave Evidence
• Now Playing22minDeadly Formula
• Now Playing22minBeaten by a Hair
• Now Playing22minCrime Seen
• Now Playing22minSpeck of Evidence
• Now Playing22minBroken Bond
• Now Playing22minOut of the Ashes

Forensic Files Season 4

• Now Playing22minInvisible Intruder
• Now Playing22minThe Killing Room
• Now Playing22minUltimate Betrayal
• Now Playing22minCement the Case
• Now Playing22minInnocence Lost
• Now Playing22minTil Death Do Us Part
• Now Playing22minTies That Bind
• Now Playing22minBody of Evidence
• Now Playing22minAccident or Murder?
• Now Playing22minCore Evidence
• Now Playing22minHaunting Vision
• Now Playing22minWith Every Breath
• Now Playing22minSlippery Motives

Forensic Files Season 5

• Now Playing23minBadge of Deceit
• Now Playing23minDew Process
• Now Playing23minA Woman Scorned
• Now Playing23minA Voice from Beyond
• Now Playing23minBurning Ambition
• Now Playing23minMemories
• Now Playing23minTrail of Truth
• Now Playing23minMaterial Evidence
• Now Playing23minKill'igraphy
• Now Playing23minNursery Crimes
• Now Playing23minLasting Impression
• Now Playing23minFoundation of Lies
• Now Playing23minUnholy Vows
• Now Playing23minBroken Promises
• Now Playing23minTime Will Tell
• Now Playing23minSecond Shot at Love
• Now Playing23minJourney to Justice
• Now Playing23minVideo Diary
• Now Playing23minDeadly Knowledge

Forensic Files Season 6

• Now Playing23minMissing in Time
• Now Playing23minMissing Pearl
• Now Playing23minMan's Best Friend?
• Now Playing23minHand Delivered
• Now Playing23minDeath Play
• Now Playing23minFire Dot Com
• Now Playing23minMistaken For Dead
• Now Playing23minFrozen Evidence
• Now Playing23minSoft Touch
• Now Playing23minChurch Disappearance
• Now Playing23minPhoto Finish
• Now Playing23minWhodunit
• Now Playing23minHorse Play
• Now Playing23minTreads and Threads
• Now Playing23minKiller's "Cattle" Log
• Now Playing23minSkin of Her Teeth
• Now Playing23minLine of Fire
• Now Playing23minBad Blood
• Now Playing23minPure Evil
• Now Playing23minRoot of All Evil
• Now Playing23minWhere the Blood Drops
• Now Playing23minPunch Line
• Now Playing23minSibling Rivalry
• Now Playing23minPastoral Care
• Now Playing23minBagging a Killer
• Now Playing23minDouble Trouble
• Now Playing23minCats, Flies & Snapshots
• Now Playing23minNaked Justice
• Now Playing23minTreading Not So Lightly
• Now Playing23minShopping Spree

Forensic Files Season 7

• Now Playing23minThe Cheater
• Now Playing23minForever Hold Your Peace
• Now Playing23minReel Danger
• Now Playing23minWho's Your Daddy
• Now Playing23minThe Alibi
• Now Playing23minPurr-fect Match
• Now Playing23minBio-Attack
• Now Playing23minA Shot in the Dark
• Now Playing23minWithout a Prayer
• Now Playing23minA Clutch of Witnesses
• Now Playing23minScout's Honor
• Now Playing23minA Touching Recollection
• Now Playing23minA Leg to Stand On
• Now Playing23minPartners in Crime
• Now Playing23minWithin a Hair
• Now Playing23minChief Evidence
• Now Playing23minA Bitter Pill to Swallow
• Now Playing23minSip of Sins
• Now Playing23minTelltale Tracks
• Now Playing23minGhost in the Machine
• Now Playing23minFrozen in Time
• Now Playing23minCold Storage
• Now Playing23minThe Metal Business
• Now Playing23minDressed to Kill
• Now Playing23minPalm Print Conviction
• Now Playing23minA Vow of Silence
• Now Playing23minElephant Tracks
• Now Playing23minA Bag of Evidence
• Now Playing23minTooth or Consequences
• Now Playing23minSniffing Revenge
• Now Playing23minSleight of Hand
• Now Playing23minScratching The Surface
• Now Playing23minFire Proof
• Now Playing23minX Marks the Spot
• Now Playing23minAll Charged Up
• Now Playing23minBreaking the Mold
• Now Playing23minHouse Call
• Now Playing23minMarathon Man
• Now Playing22minThe Sniper's Trail
• Now Playing23minPlastic Fire
• Now Playing23minLast Will

Forensic Files Season 8

• Now Playing23minDessert Served Cold
• Now Playing23minThe Music Case
• Now Playing23minPaintball
• Now Playing23minSign Here
• Now Playing23minShadow of a Doubt
• Now Playing23minTourist Trap
• Now Playing23minOnce Bitten
• Now Playing23minAll Wet
• Now Playing23minShot of Vengeance
• Now Playing23minDinner and a Movie
• Now Playing23minA Wrong Foot
• Now Playing23minOrder Up
• Now Playing23minWhen the Dust Settled
• Now Playing23minA Welcome Intrusion
• Now Playing23minWithin Arm's Reach
• Now Playing23minPrivate Thoughts
• Now Playing23minBrotherhoods
• Now Playing23minHair of the Dog
• Now Playing23minBreaking News
• Now Playing23minAll the World's a Stage
• Now Playing23minThe Big Chill
• Now Playing23minBound for Jail
• Now Playing23minSphere of Influence
• Now Playing23minNailed
• Now Playing23minSign of the Zodiac
• Now Playing23minLetter Perfect
• Now Playing23minTrue Lies
• Now Playing23minBed of Deceit
• Now Playing23minSmoke in your Eyes
• Now Playing23minFlower Power
• Now Playing23minPast Lives
• Now Playing23minOver and Out
• Now Playing23minDeath by a Salesman
• Now Playing23minWeb of Seduction
• Now Playing23minGrounds for Indictment
• Now Playing23minDuelling Confessions
• Now Playing23minTraces of Truth
• Now Playing22minHonor Thy Father
• Now Playing23minHack Attack
• Now Playing23minDeadly Curve
• Now Playing23minVisibility Zero
• Now Playing23minFlashover

Forensic Files Season 9

• Now Playing22minRoad Rage
• Now Playing22minHunter or Hunted
• Now Playing22minIn Harm's Way
• Now Playing22minNo Corpus Delicti
• Now Playing22minNews at 11
• Now Playing22minBurning Desire
• Now Playing22minCloak of Deceit
• Now Playing22minBad Medicine
• Now Playing22minStick 'Em Up
• Now Playing22minHead Games
• Now Playing22minMaking the Collar
• Now Playing22minThe Financial Downfall
• Now Playing22minA Daughter's Journey
• Now Playing22minOver a Barrel
• Now Playing22minPinned by the Evidence
• Now Playing22minCries Unheard
• Now Playing22minBuried Treasure
• Now Playing22minBadge of Betrayal
• Now Playing22minDeadly Matrimony
• Now Playing22minMuddy Waters
• Now Playing22minPoint of Origin
• Now Playing22minSeeds for Doubt
• Now Playing22minSaving Face
• Now Playing22minNorthern Exposure
• Now Playing22minSilk Stalkings
• Now Playing22minFishing for the Truth
• Now Playing22minFor Love or Money
• Now Playing22minSouth of the Border
• Now Playing22minThe Stake-Out
• Now Playing22minWalking Terror

Forensic Files Season 10

• Now Playing22minMarked for Life
• Now Playing22minPlastic Puzzle
• Now Playing22minUp in Smoke
• Now Playing22minSoiled Plan
• Now Playing22minHeadquarters
• Now Playing22minOne for the Road
• Now Playing22minArmy of Evidence
• Now Playing22minShear Luck
• Now Playing22minTagging a Suspect
• Now Playing22minStrong Impressions
• Now Playing22minCereal Killer
• Now Playing22minCrash Course
• Now Playing22minA Leg Up On Crime
• Now Playing22minTight-fitting Genes
• Now Playing22minDeadly Valentine
• Now Playing22minPicture This
• Now Playing22minOily in the Morning
• Now Playing22minGold Rush
• Now Playing22minFour on the Floor
• Now Playing22minWriter's Block
• Now Playing22minA Clean Getaway
• Now Playing22minPrints Among Thieves
• Now Playing22minUnholy Alliance
• Now Playing23minSigned, Sealed & Delivered
• Now Playing22minCop Out
• Now Playing22minSummer Obsession
• Now Playing22minElemental Clue
• Now Playing22minMoss, Not Grass
• Now Playing22minMaterial Witness
• Now Playing22minGarden of Evil
• Now Playing22minSunday School Ambush
• Now Playing22minPenchant for Poison
• Now Playing22minBump in the Night
• Now Playing22minSole Searching
• Now Playing22minMurder on the Menu
• Now Playing22minHot on the Trail
• Now Playing22minHigh 'n Dry
• Now Playing22minTo the Viktor
• Now Playing22minWired for Disaster
• Now Playing22minWood-be Killer

Forensic Files Season 11

• Now Playing22minNaughty or Nyce
• Now Playing22minGoing for Broke
• Now Playing22minJust Desserts
• Now Playing22minSunday's Wake
• Now Playing22minShattered Dreams
• Now Playing22minDockter Visit
• Now Playing22minMurder, She Wrote
• Now Playing22minConcrete Alibi
• Now Playing22minKey Evidence
• Now Playing22minThe Gambler
• Now Playing22minWeakest Link
• Now Playing22minCapitol Crimes
• Now Playing22minUndertaken
• Now Playing22minDark Waters
• Now Playing22minNice Threads
• Now Playing22minGrave Danger
• Now Playing22minInternal Affair
• Now Playing22minA Case of the Flue
• Now Playing22minNo Safe Place
• Now Playing22minLive Wire
• Now Playing22minVan-ished
• Now Playing22minA Novel Idea
• Now Playing22minChief Suspect
• Now Playing22minWater Hazard
• Now Playing22minShell Game
• Now Playing22minRing Him Up
• Now Playing22minKiller Impression
• Now Playing22minIf I Were You
• Now Playing22minAs the Tide Turns
• Now Playing22minA Tight Leash
• Now Playing22minMuffled Cries
• Now Playing22minCritical Maneuver
• Now Playing22minSkirting the Evidence
• Now Playing22minSmall Town Terror
• Now Playing22minFresh Heir
• Now Playing22minTicker Tape
• Now Playing22minStep by Step
• Now Playing22minBlanket of Evidence
• Now Playing22minFired-Up
• Now Playing22minTwo in a Million
• Now Playing22minBitter Brew
• Now Playing23minMessage in a Bottle

Forensic Files Season 12

• Now Playing22minSharper Image
• Now Playing22minInsulated Evidence
• Now Playing22minCold Hearted
• Now Playing22minWheel of Misfortune
• Now Playing22minQuite a Spectacle
• Now Playing22minTransaction Failed
• Now Playing22minThe Day the Music Died
• Now Playing22minSole Survivor
• Now Playing22minInsignificant Others
• Now Playing22minCatch 22
• Now Playing22minA Cinderella Story
• Now Playing22minScreen Pass
• Now Playing22minPressed for Crime
• Now Playing22minFinger Pane
• Now Playing22minGood as Gold
• Now Playing22minFreedom Fighter
• Now Playing22minDog Day Afternoon
• Now Playing22minShattered Innocence
• Now Playing22minAll Butt Certain
• Now Playing22minJean Pool
• Now Playing22minTraffic Violations
• Now Playing22minBrotherly Love
• Now Playing22minDisrobed
• Now Playing22minDriven to Silence
• Now Playing22minPrinted Proof
• Now Playing22minAbout Face
• Now Playing22minIn the Bag
• Now Playing22minYes, In Deed
• Now Playing22minGuarded Secrets
• Now Playing22minSmoking Out a Killer

Forensic Files Season 13

• Now Playing22minFrozen Assets
• Now Playing22minHouse Hunting
• Now Playing22minShoot to Thrill
• Now Playing22minPolitical Thriller
• Now Playing22minDouble Cross
• Now Playing22minDancing with the Devil
• Now Playing22minLast Dance
• Now Playing22minConstructive Criticism
• Now Playing22minHome Evasion
• Now Playing22minWindow Watcher
• Now Playing22minStranger in the Night
• Now Playing22minKidnapping
• Now Playing22minSands of Crime
• Now Playing22minCalculated Coincidence
• Now Playing22minSworded Scheme
• Now Playing22minUnmasked
• Now Playing22minFashion Police
• Now Playing22minChurch Dis-service
• Now Playing22minSeedy Intentions
• Now Playing22minDNA Dragnet
• Now Playing22minSmiley Face
• Now Playing22minDirty Laundry
• Now Playing22minDrowning Sorrows
• Now Playing22minAs Fault
• Now Playing22minFamily Ties
• Now Playing22minTrouble Brewing
• Now Playing22minHoly Terror
• Now Playing22minNeedle in a Haystack
• Now Playing22minRoom with a View
• Now Playing22minDollars and Sense
• Now Playing22minHair Line
• Now Playing22minAll that Glitters is Gold
• Now Playing22minDeadly Rebellion
• Now Playing22minSign of the Crime
• Now Playing22minCovet Thy Neighbour
• Now Playing22minWriting on the Wall
• Now Playing22minHundreds of Reasons
• Now Playing22minCold Feet
• Now Playing22minSeparation Anxiety
• Now Playing22minOffice Visit
• Now Playing22minPalm Saturday
• Now Playing22minShoe-In For Murder
• Now Playing22minFamily Interrupted
• Now Playing22minRunaway Love
• Now Playing22minWatchful Eye
• Now Playing22minWaste Mis-Management
• Now Playing22minDirty Little Secret
• Now Playing22minLights Out
• Now Playing22minPet Rock
• Now Playing22minBest Foot Forward

Forensic Files Season 14

• Now Playing22minPurebread Murder
• Now Playing22minHear No Evil
• Now Playing22minHell's Kitchen
• Now Playing22minThree's a Crowd
• Now Playing22minA Squire's Riches
• Now Playing22minHome of the Brave
• Now Playing22minFreeze Framed
• Now Playing22minTouch of Evil
• Now Playing22minTextbook Murder
• Now Playing22minFiltered Out
• Now Playing22minWater Logged
• Now Playing22minSocial Circle
• Now Playing22minLow Maintenance
• Now Playing22minFate Date
• Now Playing22minTrail of a Killer
• Now Playing22minGone Ballistic
• Now Playing22minSeeing Red
• Now Playing22minSkeleton Key
• Now Playing22minFuneral Services
• Now Playing22minExpert Witness

25 Years of Forensic Files: The Greatest Cases

• Now Playing22minGrave Danger
• Now Playing23minPurr-fect Match
• Now Playing22minPurebread Murder
• Now Playing22minPostal Mortem
• Now Playing22minHell's Kitchen
• Now Playing22minFamily Ties
• Now Playing22minMuffled Cries
• Now Playing22minFreeze Framed
• Now Playing22minWater Logged
• Now Playing22minTwo in a Million
• Now Playing22minDeadly Formula
• Now Playing22minDirty Little Secret
• Now Playing23minPure Evil
• Now Playing22minA Cinderella Story
• Now Playing23minA Bitter Pill to Swallow
• Now Playing22minFrozen Assets
• Now Playing23minThe Disappearance of Helle Crafts
• Now Playing23minBad Blood
• Now Playing23minThe List Murders