After a government prosecution that lasted nearly seven years, a federal jury Wednesday convicted home-run king Barry Bonds on one charge of obstruction of justice for allegedly lying about using performance-enhancing drugs. Read the full story here: Los Angeles Times – Top News

Based on that paragraph can we conclude that this sentence is true?
Barry Bonds definitely used drugs.

Choices:
- Yes.
- It's impossible to say.
- No.
It's impossible to say