Paul Landis was a 28-year-old Secret Service Agent, when he witnessed the assassination of President John F. Kennedy in Dallas, Texas.

He was assigned to the First Lady and was walking one car length behind the Presidential motorcade when shots rang out.

Now 88-years-old, Landis is offering a stunning revelation about November 22nd, 1963. 

He's claiming, he tampered with evidence and put one of the bullets believed to have killed the president in his pocket, before placing it on a hospital gurney.

Landis, the author of the "Final Witness", a Kennedy Secret Service Agent breaks his silence after sixty years.

He shared his story Monday night at the Jefferson Educational Society.

Landis told Erie News Now after the event, "That it took years before he could process what happened that day in Dallas and rarely watched TV or read the newspapers."

In recent years, he decided it was finally time to tell his story.