Bishop Thomas J. O'Brien was sentenced Friday to four years of probation for a hit-and-run accident that left a pedestrian dead and destroyed O'Brien's career as head of the Phoenix Diocese.

O'Brien, 68, is believed to be the first Roman Catholic bishop in U.S. history to be convicted of a felony.

He was also ordered to perform 1,000 hours of community service, including hospital visits to severely injured and dying people, and his driver's license was suspended for five years. The clergyman could have received as much as three years and nine months behind bars.

Judge Stephen A. Gerst said the conviction alone is a significant punishment for a public figure such as O'Brien.

"He will bear the quiet glances and whispers of others for the rest of his life," Gerst said.

O'Brien declined to comment after the hearing.

He was found guilty in February of leaving the scene after he hit Jim Reed, 43, with his car. O'Brien said he thought he had hit a dog or that a rock had struck his windshield.

Last week, O'Brien asked Gerst for probation and said he could still serve Catholics in Arizona as a priest. He also apologized to Reed's family, saying, "I know there is no one to blame for this but me."

Prosecutors asked for six months in jail and four years of probation.

O'Brien led the diocese's nearly 480,000 Catholics for 21 years, but stepped down in June after his arrest in the hit-and-run. Just weeks earlier, prosecutors announced that he had struck a deal to avoid prosecution on obstruction charges for protecting child-molesting priests. Under the deal, O'Brien agreed to no longer handle abuse claims.

Reed was drunk and jaywalking the night of June 14 when O'Brien hit him on his way home from celebrating Mass. The accident left a giant spider-web crack in O'Brien's windshield and Reed lying in the street. O'Brien then drove the two miles back to his house and parked in his garage.

The bishop testified that he heard a loud crash but never saw anyone in the road. The defense further argued that dim lighting, headlight glare and the victim's dark clothes made him hard to see.

But prosecutors argued that O'Brien knew or should have known he hit someone. He did not call police even after a diocese official told him investigators believed the car may have been involved in a deadly accident.

Thomas J. O'Brien is believed to be the first Catholic bishop in U.S. history to be convicted of a felony.