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Investigations
Friday, Sep 16, 2016
LA Officials Team Up to Reverse Trend of Deadly Crashes

LA Officials Team Up to Reverse Trend of Deadly Crashes

In some Los Angeles streets, officers cannot enforce a speed limit for drivers. One traffic officer calls it "almost like a state of lawlessness." Read More

Investigations
Thursday, Sep 15, 2016
Wealthy Californians Spending Big on Out-of-State Elections

Wealthy Californians Spending Big on Out-of-State Elections

The NBC4 I-Team examined thousands of donations and found that a fraction of California's richest residents are donating nearly half the money to candidates and political action committees. Read More

Investigations
Wednesday, Sep 14, 2016
Why Do Cellphone Batteries Explode?

Why Do Cellphone Batteries Explode?

Exploding batteries have long been problems for mobile gadgets. So what exactly causes them to explode? Read More

Investigations
Wednesday, Sep 14, 2016
Class Action Lawsuit Alleges Rodents Chewing Car Wiring

Class Action Lawsuit Alleges Rodents Chewing Car Wiring

Months after a lawsuit was filed against Honda for using an eco-friendly material experts say attracts rodents, a new lawsuit filed in Los Angeles suggests there could be tens of millions of defective Toyota vehicles and drivers... Read More

Investigations
Wednesday, Feb 8, 2017
Receiving More Robocalls? You're Not Alone

Receiving More Robocalls? You're Not Alone

No one likes robocalls. But even signing on to do-not-call lists doesn't stop them from happening or from people falling victim to phone scams. Randy Mac investigates for the NBC4 News at 6 Wednesday, Feb. 8, 2017.

Investigations
Tuesday, Sep 13, 2016
Hollywood Tour Operators Ignoring Government Warning

Hollywood Tour Operators Ignoring Government Warning

Nearly three weeks after the federal government urged more than two dozen Hollywood celebrity home tour companies to stop using open-air vans due to serious safety concerns, the I-Team has found these businesses are continuing... Read More

Investigations
Tuesday, Aug 30, 2016
Case Closed: Travel Costs Refunded

Case Closed: Travel Costs Refunded

A La Mirada woman learned she needed surgery before a trip, but couldn’t get her money back for the trip. She turned to the I-Team’s Consumer Investigative Center, solving your problems. If you have a consumer problem you can’t resolve, Randy responds! Fill out our form at nbcla.com/randy.

Investigations
Wednesday, Aug 24, 2016
Feds Investigate Hollywood 'Topless' Tour Van Operators

Feds Investigate Hollywood 'Topless' Tour Van Operators

The federal government is now investigating one of the most famous tours in the world because of an NBC4 investigation. Read More

Investigations
Saturday, Aug 13, 2016
Hollywood Tour Trouble

Hollywood Tour Trouble

The NBC4 I-Team spent months going undercover to expose the hidden dangers of Hollywood tours.

Investigations
Sunday, Aug 21, 2016
New Safety Questions About 'Topless' Hollywood Tour Vans

New Safety Questions About 'Topless' Hollywood Tour Vans

They appear to be unique to Southern California: convertible passenger vans that carry thousands of tourists every week to see the notable landmarks and celebrity homes of Hollywood and Beverly Hills. Read More

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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
  • Ads Exploit YouTube Celebrity's Image

    Ads Exploit YouTube Celebrity's Image

    YouTube celebrity Janet D'Oliveira created a video for her fans to show how Botox took years off her face in a matter of days.

  • NBC4 I-Team Tips

    NBC4 I-Team Tips

    Do you have a tip for the NBC4 I-Team? We want to hear from you.

  • DMV Efforts to Stop Placard Abuse Falls Short

    DMV Efforts to Stop Placard Abuse Falls Short

    The California Department of Motor Vehicles is failing to prevent widespread illegal misuse of disabled placards in certain Southern California neighborhoods where parking spots are hard to find, the NBC4 I-Team has learned.

  • Condo Looms, Spells Doom for Neighbor's Garden

    Condo Looms, Spells Doom for Neighbor's Garden

    A Costa Mesa man says he's had enough after waiting two years for a home builder to mend fences for damage to his property.

  • Rental Scam 'Mastermind' Pleads Guilty

    Rental Scam 'Mastermind' Pleads Guilty

    The man who state authorities called the "mastermind" of rental scams pleaded guilty Wednesday to a felony charge of defrauding Southern California customers who were looking for affordable rental homes and apartments.

  • Is Airbnb Hurting Southern California's Housing Market?

    Is Airbnb Hurting Southern California's Housing Market?

    The popular online vacation rental site Airbnb might be making it harder and more expensive for you to find an apartment or home to rent in southern California, according to a community advocacy group that's studying the impact of...

Top Stories
  • Car Crashes Into Valley Glen Starbucks

    Car Crashes Into Valley Glen Starbucks

    Fire officials say four people are being evaluated for injuries after a two-car collision sent a car crashing into a Valley Glen Starbucks.

  • Linkin Park Singer Chester Bennington Dies at 41

    Linkin Park Singer Chester Bennington Dies at 41

    Linkin Park lead singer Chester Bennington, who sold millions of albums with an ever-changing mix of hard rock, hip-hop and rap, was found dead in his home near Los Angeles on Thursday, the Los Angeles County coroner said.

  • OJ Simpson Granted Parole in Nevada Robbery

    OJ Simpson Granted Parole in Nevada Robbery

    A visibly grayer and thinner O.J. Simpson appeared before Nevada parole commissioners Thursday morning and was granted parole, making him eligible to leave prison in October.

  • Trump's First 6 Months: His Wins, Losses and Stalemates

    Trump's First 6 Months: His Wins, Losses and Stalemates

    President Donald Trump took office promising a pivot for the country on everything from health care to immigration, a transfer of power not from one administration to another but from Washington, D.C., to the American people. In...