Yep, that's the guy. It's been years but I remember his plagiarized music not only caused a delay of the Kai Buu saga, it caused a re-release of Kai with older remastered DBZ JP soundtracks, and also it caused a ton of people online to go back and find out just how many songs he stole music sheets from. The amount was insane. There's an entire playlist on youtube of 100+ tracks showing what he stole.
I guess at least the man had good taste in music, but he really nuked his career once people found out.