Former First Lady Melania Trump released a video on Tuesday criticizing law enforcement for not arresting gunman Thomas Matthew Crooks before he was able to open fire on her husband at his Butler, Pennsylvania rally in July.

“The attempt to end my husband’s life was a horrible, distressing experience. Now, the silence around it feels heavy,” Trump said. “I can’t help but wonder why didn’t law enforcement officials arrest the shooter before the speech. There is definitely more to this story and we need to uncover the truth.”

The video closed with a photo of Melania Trump’s upcoming memoir, Melania, which “invites readers into her world, offering an intimate portrait of a woman who has lived an extraordinary life. Melania includes stories and images never before shared with the public.”