Mike Ramsey

Day four of search for Nancy Guthrie, still no suspect; Department of Homeland Security to pull about 700 agents from Minneapolis.

"Nancy and Savannah have both contributed so much to the Tucson community," Sally Shamrell, the Guthries' family friend of over 30 years, told CBS News.

The disappearance of "Today" show co-host Savannah Guthrie's mother, Nancy Guthrie, is being investigated as a crime.

Savannah Guthrie said she and her family were aware of reports of a ransom note and that they are "ready to talk."

The death last month of former NFL player Kevin Johnson is possibly linked to three other killings of unhoused people in the same area that occurred over the last four months, detectives said.