Bishop Kevin K. Farrell, of the the Catholic Dioceses of Dallas, speaking at the Commemoration of the assassination of JFK, said that the city had "suffered" following the shooting that had "shock and horrified" the nation.
He said: "Today we lift up our hearts and minds... from the horrible tragedy enacted in this place. From the cruel suffering that was born on this hill.
"From the shock and horror that gripped our nation, and from the years when we, as citizens of this city, suffered and were implicated by the gun shot by one man, that killed a President, in whom many of us had set our hopes and dreams for a better America."
As the world remembers the assassination of John F. Kennedy, many are reviewing his final day and the evidence around his murder.
President Kennedy's assassination left America permanently scarred.
Half a century since the murder of President John F Kennedy in Dallas, America pauses to remember their fallen hero.