Brian Laundrie’s notebook he wrote in at the time of Gabby Petito’s death has been made public.

The former fiancé of Gabby Petito wrote about killing Gabby in his notebook.

The FBI seized his notebook and backpack prior to discovering his remains in a Florida nature reserve.

Fox News first obtained photos of the notebook entries.

The 23-year-old praised his former fiancée writing, “I love you more than anything…”

He then went into the grim details surrounding her death.

“I hear a splash and a scream. I could barely see, I couldn’t find her for a moment, shouted her name. I found her breathing heavily gasping my name, she was freezing cold,” he wrote.

He explained that after Gabby fell in the water shouldn’t couldn’t tell him what hurt, but she had a small bump on her forehead which grew in size as time went on.

“I ended her life, I thought it was merciful, that it is what she wanted, but I see now all the mistakes I made,” his journal entry continued.