Jose Canseco is famous for writing the book Juiced, which was a big deal at the time. It seems like he got blackballed before he wrote the book and that's why he wrote it. Says 85 percent of MLB was on steroids and that he injected the four famous names he mentioned in the book.
At his lowest, he was living in a garage for six months.
Interesting interview. The book starts at 1:03:00.