WASHINGTON ‒ Vice President JD Vance will travel to Salt Lake City, Utah, on Sept. 11 to pay his respects to the family of Turning Point USA co-founder Charlie Kirk, canceling his previous plans to visit New York City to honor the victims of the 9/11 terrorist attacks, according to a source familiar with Vance’s plans.

Vance will be joined by second lady Usha Vance.

The vice president was a close friend of the charismatic conservative activist Kirk, who was fatally shot while speaking at an event at Utah Valley University in Orem, Utah, on Sept. 10. A manhunt for the suspect is still active.

More: Charlie Kirk shot and killed in Utah as authorities hunt for gunman: Live updates

President Donald Trump’s schedule on Sept. 11 remains unchanged. He still plans to attend a 9/11 observance event at the Pentagon in the morning and travel to New York City in the afternoon to attend a New York Yankees-Detroit Tigers baseball game at Yankee Stadium.