Conversation so far:
What is BALCO with Jason Giambi?
Jason Giambi was named by FBI officers investigating the Bay Area Laboratory Co-operative
What was the scandal with Jason Giambi and the Bay Area Laboratory Co-operative?
Jason Giambi was investigated as being one of the baseball players believed to have received anabolic steroids from trainer Greg Anderson.
What year was Jason Giambi investigated as being one of the baseball players believed to have received anabolic steroids from trainer Greg Anderson?
Jason Giambi  was investigated in 2003
Were there other people besides Jason Giambi investigated?
The Mitchell Report included Jason Giambi along with his brother Jeremy Giambi, who also admitted to using steroids during his career.
Did the BALCO Scandal with Jason Giambi go to trial?
the BALCO Scandal with Jason Giambi  had a grand jury

Question: Was he convicted?
Self-contained rewrite: Was Jason Giambi convicted in the BALCO Scandal?