CHICAGO (CBS)–A teenager with an undiagnosed behavioral disorder is safe at home with his mom tonight, but just 24 hours ago a police dog plucked the boy from a freezing pond.

In a matter of seconds, 16-year-old Davian Palomar walked away from his mother’s car and onto this secluded wooded path in northwest suburban Round Lake Beach.

Frantic, his mother called 911 for help.

That’s when Lake County Sheriff Deputy Craig Somerville and his K9, “Diesel.” arrived.

“Diesel” helped track Palomar’s scent and rescued him – as he was waist-deep in a pond.

Police say the teen was cold and was already showing signs of hypothermia.

Later that same night, “Dax”– a different K9 with the Lake County Sheriff’s Department–found a man in his 30’s unconscious after tracking his scent for nearly a quarter mile.