I'm Candace DeLong and on my new podcast, Killer Psychy Daily, I share a quick 10-minute

rundown every weekday on the motivations and behaviors of the cold-butter killers you

read about in the news.

Listen to the Amazon Music Exclusive Podcast Killer Psychy Daily in the Amazon Music

app.

Download the app today.

60 minutes has traveled to a lot of far-off places to tell a lot of incredible stories, but

on this trip to the Colombian countryside, we ran smack into a medical detective story

that may end up affecting someone you know and love.

After years of research on a unique population of patients, a multi-million dollar NIH-backed

study has begun to see if the dreaded Alzheimer's disease may be preventable.

If it makes a difference for them, I think there's a reasonable chance it could make a difference

for all the rest of the people who get Alzheimer's disease.

I didn't feel entitled to become a star, I didn't expect it.

Did you want it?

Not really.

Brian Kranz did knock-around Hollywood for decades before landing his first leading role at age

50.

Then transformation.

Walter White on Breaking Bad.

I am the danger.

A tough act to follow, yet somehow...

...