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Investigations
Friday, Mar 16, 2018
Broken Water Heater Cause of Koreatown Apartment Leak

Broken Water Heater Cause of Koreatown Apartment Leak

Tenants of a Koreatown apartment building are back home. But last week it was the scene of dangerous and potentially deadly levels of carbon monoxide leaking into the building, forcing residents to evacuate. Read More

Investigations
Thursday, Mar 15, 2018
LA Opioid Doctor Sentenced for Illegal Practices

LA Opioid Doctor Sentenced for Illegal Practices

A Los Angeles based Opioid Doctor is being labeled a drug dealer by the feds because he sold painkillers to people in exchange for cash. Joel Grover reports for NBC4 News on Thursday, March 18, 2018.

Investigations
Wednesday, Mar 14, 2018
How CHP's $500K Cargo Bust Could Affect You

How CHP's $500K Cargo Bust Could Affect You

Fifteen people were arrested in what investigators call an elaborate commercial burglary ring that could affect you the next time you go shopping. Read More

Investigations
Tuesday, Mar 13, 2018
Border Wall: Fact-Checking Trump

Border Wall: Fact-Checking Trump

The NBC4 I-team checked various non partisan groups, government agencies and others to get a sense of how the border wall would work. And if it would fulfill the President's promises. Read More

Investigations
Tuesday, Mar 13, 2018
Grass Isn't Greener After Man Gets New Lawnmower

Grass Isn't Greener After Man Gets New Lawnmower

A busted battery is undercutting one man's ability to cut his lawn, and he's not alone. Read More

Investigations
Monday, Mar 12, 2018
More than 1,000 Locks in LA Jail Are a Security Risk

More than 1,000 Locks in LA Jail Are a Security Risk

Los Angeles County is scrambling to address a major security flaw that has already led to an attack inside one of its jails. Read More

Investigations
Friday, Mar 9, 2018
5 Things to Know About Carbon Monoxide Poisoning

5 Things to Know About Carbon Monoxide Poisoning

More than 400 Americans die from unintentional carbon monoxide poisoning every year, according to the Centers for Disease Control and Prevention. NBC4 provides five safety tips the National Fire Protection Association says... Read More

Investigations
Thursday, Mar 8, 2018
Man Claims Airbnb Host Kicked Him Out Mid Stay

Man Claims Airbnb Host Kicked Him Out Mid Stay

Logan Kugler says the LAPD knocked on the door of his Airbnb rental in Studio City on March 1, just days into his stay. Read More

Investigations
Thursday, Mar 8, 2018
Retired LAPD Officer Charged With Workers' Comp Fraud

Retired LAPD Officer Charged With Workers' Comp Fraud

Felony charges were filed Thursday against a retired LAPD officer in an alleged workers' compensation fraud case. Read More

Investigations
Wednesday, Mar 7, 2018
Local Police Clarify Immigration Policies

Local Police Clarify Immigration Policies

The Trump administration has sued California over its immigration policies, which place restrictions on how much government authorities can cooperate with federal immigration agencies. Local law enforcement officials, however, say that their policies adhere to California's so-called sanctuary state laws, but it's still possible for people arrested on local charges to wind up in the custody of immigration agents. Eric Leonard reports for the NBC4 News at 5 p.m. on Wednesday, March 7, 2018.

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