Big Pharma was supposed to self-police fentanyl prescriptions. It failed. Patients died.

Internal documents show lax enforcement, missed opportunities by the federal government.

  KOLD INVESTIGATES: Is ADOT putting lives at risk on I-10?

Now Ten years later, white crosses remembering Pam and Ann still stand alongside highway I-10 on mile 171. Humphrey's still fighting to put something else in the middle of the road - cable median barriers.

You can help uncover political ad targeting on Facebook

Use the Facebook Political Ad Collector to help categorize ads and understand why they are targeting you.

KOLD INVESTIGATES: Hospital in jeopardy

KOLD Investigates has told you about the many citations Sonora Behavioral Health Hospital in Tucson received from the Arizona Department of Health Services. Now we are talking with a woman who lived through it.

KOLD INVESTIGATES: Inside Tucson’s child immigrant holding facility

KOLD Investigates looked into Southwest Key, a controversial child immigrant holding facility in Tucson.

KOLD INVESTIGATES: Fundraising group to stop collecting donations in Tucson

The man behind fundraising efforts that claim to support foster children in southern Arizona said Tuesday that he has suspended operations of any donation tables in Tucson.

KOLD INVESTIGATES: Red flags, admitted mistakes and proposed changes for Tucson fundraising group

Established agencies that serve the foster and adoption community in the Tucson area are warning families and individuals to be wary of a group that has been collecting donations.

KOLD INVESTIGATES: GAO report on border wall construction

Customs and Border Protection is missing some importation information as it moves forward with plans to expand the border wall in parts of the United States, according to a new report from the U.S. Government Accountability Office.

KOLD Investigates: Ground soaked, flooded before train derailment NW of Tucson

While federal teams and Union Pacific investigate the train derailment northwest of Tucson earlier this month, Pima County has compiled a report on storms that hit the area with a powerful one-two punch in 48 hours.

KOLD INVESTIGATES: Lack of officers costing TPD millions, leading to slow response times

Not enough officers. The department and city of Tucson admits it is a problem. They say because of budget issues and retirements - the department has its fewest number of officers in 30 years. The number is about 800.

KOLD INVESTIGATES: Doctors escape punishment for taking cash to over-prescribe opioids

KOLD Investigates has learned the doctors who received the most money from a controversial drugmaker, to prescribe its potent opioid, have faced little scrutiny for their role in what federal agents have called a scheme.