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Investigations
Tuesday, Jul 16, 2019
MS-13 Gang Accused in a Gruesome Murder Spree Around LA

MS-13 Gang Accused in a Gruesome Murder Spree Around LA

Citing a gruesome series of killings in Los Angeles in which one victim was dismembered and whose heart was cut out, a federal grand jury has indicted 22 alleged members or associates of the notorious MS-13 gang on charges... Read More

Investigations
Friday, Jul 12, 2019
California Legislator Fights for More Seismic Retrofitting

California Legislator Fights for More Seismic Retrofitting

With recent quakes rattling Southern California, thousands of buildings are still being retrofitted to improve how they will withstand the next "Big One." But some say more needs to be done as we look at future construction. Read More

Investigations
Friday, Jul 12, 2019
Local Legislator Pushing for More Earthquake Retrofitting

Local Legislator Pushing for More Earthquake Retrofitting

Although California buildings are being retrofitted after recent earthquakes, a local legislator says it is not enough and more needs to be done. Lolita Lopez reports for the NBC4 News at 5 p.m. on Friday, July 12, 2019.

Investigations
Friday, Jul 12, 2019
Handcuffed Prisoner Rode in Cop Car During Pursuit, Gunfight

Handcuffed Prisoner Rode in Cop Car During Pursuit, Gunfight

A handcuffed prisoner was in the back seat of a Los Angeles County Sheriff's Department patrol car that was involved in a pursuit and gunfight with the occupants of an armored Cadillac SUV registered to rapper YG, law enforcement... Read More

Investigations
Thursday, Jul 11, 2019
FBI Investigating Alleged Secret Society of Deputies

FBI Investigating Alleged Secret Society of Deputies

FBI agents are examining deputy cliques that exist within the Los Angeles County Sheriff's Department, including the "Bandito" group at the East LA station, federal and local law enforcement sources confirmed Thursday. Read More

Investigations
Monday, Aug 26, 2019
I-Team Looks at Do-it-Yourself Home Fire Protection

I-Team Looks at Do-it-Yourself Home Fire Protection

A woman in Malibu says her home was saved thanks to taking a do-it-yourself approach to fire protection. Randy Mac investigates on NBC4 News at 5 p.m. on Monday, Aug. 26, 2019.

Investigations
Thursday, Jul 11, 2019
Noah Cuatro Could Have Been Removed From Parents' Custody

Noah Cuatro Could Have Been Removed From Parents' Custody

A boy who died Saturday under suspicious circumstances in Palmdale could have been removed from the custody of his parents in May, the NBC4 I-Team has learned. Read More

Investigations
Wednesday, Jul 10, 2019
Detectives Investigating Suspicious Death of Boy

Detectives Investigating Suspicious Death of Boy

Investigators are requesting records about contacts a 4-year-old boy had with social workers before he died. Lolita Lopez reports for the NBC4 News on Wednesday, July 10, 2019.

Investigations
Tuesday, Jul 9, 2019
Could a New Design Stop Dresser Tip-Overs and Save Children's Lives?

Could a New Design Stop Dresser Tip-Overs and Save Children's Lives?

A child dies every 10 days from furniture tipping over and crushing them, according to the U.S. Consumer Product Safety Commission. Now federal safety experts are weighing in on a new dresser design from a giant retailer that's... Read More

Investigations
Tuesday, Jul 9, 2019
Jury Finds Beverly Hills Police Bosses Were Harassed

Jury Finds Beverly Hills Police Bosses Were Harassed

A jury in downtown Los Angeles found in favor Tuesday of four employees of the Beverly Hills Police Department, who said they faced harassment at work after the police chief was allegedly heard making insensitive remarks about... Read More

Sex and Drugs at LA Libraries


An NBC4 undercover investigation exposes illegal activity at LA libraries.

Fake Reviews


If you rely on online reviews to pick restaurants, businesses and services, beware: the reviewers you're depending on may be fake.

LA's Nuclear Secret


Years of mishandling dangerous radioactive materials and chemicals has also left a toxic legacy for generations of people living near the Santa Susana Field Laboratory.

Top Investigations
  • An Old Pipe Caused a Massive Blast. Then Came the Acid Leak

    Thousands of pounds of deadly hydrofluoric acid escaped into the atmosphere following the massive June 21 blast at the now-shuttered gas refinery in South Philadelphia, according to a new federal report.

  • California Regulator Orders PG&E to Fix Power Shutoff Plan

    The head of California's Public Utilities Commission on Monday ordered PG&E to revamp its power shutdown program to avoid the kind of chaos and breakdowns that were evident in last week’s planned blackouts. The power shutdown...

  • Elder Abuse Cases Likely to Remain 'Open' Investigations

    Every year more than 9,000 cases of elder abuse are reported in San Diego County and data shows the crime is often underreported and difficult to fight in court, leaving a majority of cases "open" investigations. Experts...

  • ICE Agents Violate Rules That Protect Immigrant Vets

    Even though the Immigration and Customs Enforcement Agency has policies in place that can protect immigrant U.S. veterans from deportation, NBC Bay Area’s Investigative Unit has learned that ICE officials have not regularly...

  • Delta Employee Arrested in $250,000 Heist at JFK Airport

    A Delta Airlines employee has been arrested in connection with the case of $250,000 in cash that apparently vanished from John F. Kennedy Airport as it was being transferred onto one of the airline's flights en route to Florida, a...

  • Brain Exams Aim to Predict Violent Behavior, Stop Killers

    Cutting-edge research is revealing new ways to potentially prevent violent acts, including mass shootings, years before the thought of violence ever crosses the minds of murderers. A study of roughly 1,000 prisoners revealed...

More Top Investigations »

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Car Chases
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