Hi there, this is Jeff Edgers. 50 years ago, the Rolling Stones headlined a free concert that

ended in chaos, violence, and death. It was called Altamont. I spent the last eight months reporting on it

to try to understand what it meant and why everything went so wrong. I talked to everybody I could,

from Keith Richards to the guy who built the three-foot stage.

You can listen to the story now on the All-told podcast.

Get it at Washington Post.com slash podcasts or wherever you listen to podcasts.

Hey, history lovers.

I'm Mike Rosenwald with Retropod, a show about the past, rediscovered.

Abraham Zepruder is one of history's most unlikely characters.

Before President John F. Kennedy traveled to Dallas one fateful November day in 1963,

Zeprooter lived a quiet life as a dressmaker, a dressmaker who, when he wasn't at the shop making all sorts of dresses,

loved to shoot cute home movies. Zepruder had decided to head over to Dealey Plaza to see

the president's motorcade roll through. Zepruder loved Kennedy, the vision of Camelot.

It hadn't occurred to him to take his camera. That was his assistant's suggestion.

Getting a president on his own videotape, she said, with his own camera, was a chance to capture history.

The assistant was right, of course, but for other reasons.

Zepruder wound up documenting an astonishing tragedy, the assassination of a president.

480 frames, 26 seconds.

For so many people, memories of that devastating day quickly revert to that silent, flickering sequence captured by Zepruder.

It's as chilling as it is familiar.

The approaching convertible. The waves of a crowd about to lose its innocence. The president clutching his throat. The crimson bloom in frame 313. First Lady Jacqueline Kennedy's primal scramble over the trunk.

The rush of the motorcade off to a hospital.

...