Tyrone Brown, jailed for life at age 17 after failing a drug test while on probation, was freed from a Texas prison last week after serving 17 years, the Associated Press reported March 15.

Brown was put on probation after taking part in an armed robbery. When he tested positive for marijuana, Judge Keith Dean sentenced him to life in prison. Brown had no prior criminal offenses.

Brown was freed after receiving a conditional pardon from Texas Gov. Rick Perry. Terms include living with his mother, reporting to a parole officer, getting a job and attending therapy.

"I didn't believe this day was going to come," said Brown upon being released.