PHILADELPHIA (CBS) – Thanskgiving marks the beginning of exactly 50 years since a gunman fired on Kennedy’s motorcade as it passed through Dealey Plaza in downtown Dallas.

November 22. 2012 is the 49th remembrance of President JFK’s murder.

The Warren Commission that investigated the president’s death concluded that Lee Harvey Oswald fired at Kennedy’s motorcade from the sixth floor of the Texas School Book Depository and acted alone.

Listen to Brandon Brook’s music compilation remembering that tragic day: