Investigators make major announcement in Guthrie case as they admit they have no suspects

Pima County Sheriff's Department officials announced a $50K reward Thursday for information around "Today Show" co-host Savannah Guthrie's missing mother, 84-year-old Nancy Guthrie, and admitted they still have no suspects.

Guthrie went missing sometime overnight at her Tucson home between Saturday and Sunday as the search reached its fifth day with questions surrounding a possible ransom note, one of many leads that investigators have pointed to.

Authorities confirmed identifying it was Nancy Guthrie's blood found on the porch outside her home.

Reports indicate Guthrie disappeared from her home sometime in the early morning hours on Saturday, after she was dropped off there in an Uber. Her pacemaker was last connected to her cellphone around 2 a.m., according to investigators.

Sheriff's officials said they were hopeful that Nancy could be found alive and continued to search for her nearly a week since she first went missing.