A federal jury convicted Barry Bonds of a single charge of obstruction of justice Wednesday, but failed to reach a verdict on the three counts at the heart of allegations that he knowingly used steroids and human growth hormone and lied to a grand jury about it, according to an ESPN.com report. Following a 12-day trial and almost four full days of deliberation, the jury of eight women and four men could only reach a unanimous verdict on one of the four counts against Bonds.