Brian Laundrie's Notebook Revealed, Admits Killing Gabby Petito

For the first time, Brian Laundrie's handwritten excuse for why he killed Gabby Petito is publicly available.

According to the confession obtained by Fox News, Laundrie admits to killing her, but says he only did it after she injured herself.

He thought he was doing the right thing, but he made a lot of mistakes. I was in a state of panic. I was completely shocked.

At the point of writing his confession, Laundrie appeared to be ready to take his own life.

FBI agents picked up the notebook with the rest of his bag in Florida's Myakkahatchee Creek Environmental Park during the search for him.

His writings remained legible despite the damage to the pages.

Brian wrote that he wished things wouldn't be hard for his family. She is the most wonderful girl. I apologize.