Conversation so far:
What was the BALCO Scandal?
BALCO marketed tetrahydrogestrinone ("the Clear"), a performance-enhancing anabolic steroid that was undetectable by doping tests.
What happened with this?
He was under investigation by a federal grand jury regarding his testimony in the BALCO case.

Question: What happened with the investigation?
Self-contained rewrite: What happened with the investigation of Barry Bonds?