Michael Grant said this quote

Dear Mr. Chance and Ms. Brattle. Sorry about the mess. Great bed. Loved it. As a matter of fact, loved the whole house. Actually, I tried to kill your kids when I found them here. Yeah, funny story. Maybe not funny, hah hah.’”Astrid heard nervous laughter from the media people, or maybe just from the hotel staff who were hovering around the edges grabbing a glimpse of the Hollywood royalty.“‘Anyway, I missed and they got away. I don’t know what will happen to Sanjit and that stick-up-his butt Choo and the rest, but whatever happens next, it’s not on me. However . . .’”Astrid took a dramatic pause.“‘However, the rest of what happened was on me. Me, Caine Soren. You’ll probably be hearing a lot of crazy stories from kids. But what they didn’t know was that it was all me. Me. Me me. See, I had a power I never told anyone about. I had the power to make people do bad things. Crimes and whatnot. Especially Diana, who never did anything wrong on her own, by her own will, I mean. She—and the rest of them—were under my control. The responsibility is on me. I confess. Haul me away, officers.’”Astrid suddenly felt her throat tightening, although she’d read the letter many times already, and knew what it said. Rotten son of a . . . And then this.Redemption. Not a bad concept.Well, partial redemption.“It’s signed Caine Soren. And below that, ‘King of the FAYZ.’”It was a full confession. A lie: a blatant, not-very-convincing lie. But it would be just enough to make prosecutions very difficult. Caine’s role in the FAYZ, and the reality that strange powers had actually existed in that space, were widely known and accepted.Of course Caine had enjoyed writing it. It was his penultimate act of control. He was manipulating from beyond the grave.