In an interview with True Crime Arizona's Briana Whitney, Sheriff Chris Nanos provided a glimpse of what evidence investigators are combing over.

The Pima County Sheriff's Office has created a web link for people with images and videos that can help locate Nancie Guthrie, 84, presumed kidnapped.

The Pima County attorney says Immigration and Customs Enforcement is increasing activity across the county after the arrest of three Venezuelan migrants seeking asylum. Her comments came after videos of ICE arrests spread across social media.

The Pima County Health Department (PCHD), working with the Arizona Department of Health Services and local healthcare partners, is investigating a third confirmed measles case in Pima County.

TMZ reported Tuesday that they had received what appeared to be a ransom note in the disappearance of Nancy Guthrie, mother of "TODAY" show host Savannah Guthrie.

The incident comes after the killing of 37-year-old Alex Pretti, an ICU nurse shot multiple times by federal immigration agents on Saturday in Minnesota.

Officials in Pima County and Sonora, Mexico, met on Wednesday to discuss major collaboration efforts.

Jordyn Sanchez was sentenced to over 30 years for shooting two Pima County deputies. One deputy said he was "happy that justice was served."