Overview
- Pima County Sheriff's Department helicopter conducted low, grid flights with an RF detection device seeking any pacemaker signal.
- Authorities stress pacemakers are not GPS trackers and only communicate over short ranges to paired monitors or phones.
- Investigators say Guthrie’s device disconnected from her phone around 2:28 a.m. on Feb. 1, limiting prospects for remote telemetry.
- The FBI is assisting and has released photos and video as part of the suspected abduction probe.
- The sheriff’s office reports nearly 18,000 tips, images of a masked suspect, and a reward increased to $100,000 for information.