Thousands of people packed a Las Vegas church to sing “Amazing Grace” following the deadliest shooting in U.S. history, in which 59 people died and nearly 500 were injured.

The candlelight vigil, which attracted a crowd of over 3,500, took place Tuesday at Canyon Ridge Christian Church and video of the event was first posted to the church’s Facebook page.

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President Donald Trump was in Las Vegas on Wednesday to visit with victims of the mass shooting and to meet with local officials.

The President tweeted early Thursday morning that he will never forget the people he met while in Las Vegas visiting with the victims.