President Trump told reporters that Charlie Kirk’s widow, Erika, is “devastated, absolutely devastated,” the day after Kirk was gunned down at a campus event in Utah.

Speaking outside the White House on his way to New York, Trump added that investigators are “making big progress” and that he has “an indication” of the killer’s motive.

The FBI announced Thursday afternoon it is offering a reward of up to $100,000 for information that leads to the arrest of the person who fatally shot Kirk. Authorities said they had recovered what they believed to be the rifle used in the killing, and the FBI released two images of a person of interest.

Utah officials delayed a scheduled afternoon press conference, citing “rapid developments” in the case.

Thursday also marks the 24th anniversary of the 9/11 attacks, which killed 2,977 people in New York, Washington, D.C., and Pennsylvania.

Vice President Vance and second lady Usha Vance flew to Utah to pay respects to Kirk’s family, after being initially scheduled to attend the 9/11 ceremony at Ground Zero in Lower Manhattan. The couple landed around 5 p.m. EDT, and Air Force Two was going to take Kirk’s family and his casket to Phoenix.

Follow along for updates all day.