What compels a person take out their rage on innocent people? And what happens when law enforcement struggle to keep up? Credits: https://www.buzzfeed.com/bfmp/videos/...

Mei
  / meiquinn  

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MUSIC
Asking the Questions_Full
Licensed via Warner Chappell Production Music Inc.
Not a Clue_Full
Licensed via Warner Chappell Production Music Inc.
Vanishing Act_Main
Licensed via Warner Chappell Production Music Inc.
The Killer Next Door_Main
Licensed via Warner Chappell Production Music Inc.
Devil In The Data_Main
Licensed via Warner Chappell Production Music Inc.
An Ordinary Street_Main
Licensed via Warner Chappell Production Music Inc.
Observation Pulse_Main
Licensed via Warner Chappell Production Music Inc.
Lying In Wait_Main
Licensed via Warner Chappell Production Music Inc.

STILLS
Forensic evidence
prospective56/Getty Images
KOR: Suspected South Korean Serial Killer Taken To Murder Sites
Kim Mi-Ok/Getty Images
KOR: Suspected South Korean Serial Killer Taken To Murder Sites
Kim Mi-Ok/Getty Images
KOR: Suspected South Korean Serial Killer Taken To Murder Sites
Kim Mi-Ok/Getty Images
Yoo Young-Chul (C), a 33-year-old former
AFP/Getty Images
Yoo Young-Chul (top-C-yellow rain coat),
AFP/Getty Images
Anonymous black avatars collection. Set of male and female silhouettes. User profile icon
Oleksandr Melnyk/Getty Images

VIDEO
WS Wall mounted security camera observing activity in the background / United States
ABC Studios/Getty Images
Businessman Dialing Mobile Phone
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Dolly shot of Safe box is opening at the hotel room
TUNTI/Getty Images
Apartment complex and detached house in downtown / Seoul, South Korea
Imazins/Getty Images
Blood test tube
tawattiw/Getty Images
sunset night illuminated seoul city famous tower riverside bay aerial panorama 4k timelapse south korea
Timestock22/Getty Images
Rearview of a pensive young man, while looking at the wall with pictures and document, searching for a crime solution
perinjo/Getty Images
A closeup of hitting with a hammer, used in crucification of the Lord Jesus
Wheatfield/Getty Images
Abstract white smoke in motion. Smoke, Cloud of cold fog in black background. Light, white, fog, cloud, black background
Sompob Phetchcrai/Getty Images
The forensic scientist examines the evidence. Fingerprints close-up. The detective uses a bright light source.
Paul Cheranev/Getty Images
Male feet walking upstairs. Personal perspective high view.
Robin Beckham/Getty Images
Shoe Print In The Sand
RockfordMedia/Getty Images
Jamwon Hangang Park and apartment complex next to Han River / Sinsa-dong, Gangnam-gu, Seoul, South Korea
Imazins/Getty Images
NewYork NY US. 02 MAY 2020: Ambulance flashes its lights during a paramedics with night city
photovs/Getty Images
Cherry blossom on the riverside in Ulsan
Insung Jeon/Getty Images
Woman divorcing. She is taking off her golden ring and puts on the table
bdoganay/Getty Images
Forensic scientist working at crime scene
D-Keine/Getty Images
Forensic scientist at work
D-Keine/Getty Images
Car burning by the highway: Series
voshadhi/Getty Images
Businessman Picking Up The Phone In His Office. Close-Up.
istockmaradona/Getty Images
Cancer research
guy113/Getty Images
Serial killer goes swinging axe and chops down stump after crime in woods
star_way/Getty Images
Woman stroking man hand, taking dollars, erotic services for money, nightclub
Motortion/Getty Images
TImelapse sunrise scene of Seoul downtown city skyline
Diversity Studio/Getty Images
Baechu kimchi (a staple in Korean cuisine, traditional side dish made from salted and fermented vegetables)
Imazins/Getty Images
Driving police car with blue red emergency lights flashing at night
SaddamStock/Getty Images
Legs of sex workers standing on street corner, medium shot
Vice Media/Getty Images
Young man buying illegal weapons for self-defense, illicit gun trafficking
Motortion/Getty Images
Crime investigation in motion
South_agency/Getty Images
Law enforcement officer writing murder suspect statement, danger occupation
Motortion/Getty Images
Emotions Closeup: Anger, Rage, Nervously Clenched Fist
Dzhafarov_Eduard/Getty Images
A farmer digs a hole for planting a tree in the garden
redfilmstudio/Getty Images
In a Police Station Arrested Teenage Delinquent Steps in for Side, Front View Mugshot. He is Heavily Bruised. Height Chart in the Background.
gorodenkoff/Getty Images
Time lapse of Seoul City Skyline,South Korea
CJNattanai/Getty Images
Trafficking: Police crack down on suspected prostitution ring
ITN/Getty Images
Man at workbench takes notes on graph paper
Lighthouse Films/Getty Images
timelapse - Night street in South Korea
topnatthapon/Getty Images
timelapse - Night street in South Korea
topnatthapon/Getty Images