SACRAMENTO, Calif. (AP) _ The driver whose last arrest triggered the formation of Mothers Against Drunk Driving, has been convicted of his sixth drunken driving charge.

Clarence Busch, 52, was found guilty Tuesday in Sacramento County Superior Court of causing bodily injury while driving while under the influence of alcohol and driving with a blood-alcohol content of more than 0.10 percent, the level at which a person is legally drunk in California.

In 1980, Busch was convicted of vehicular manslaughter in the death of Cari Lightner, 13, whose mother, Candy, then founded MADD. He spent four months in prison for that offense and later served nine months for parole violations.

In the latest case, he faces up to four years in prison. Sentencing was delayed for about 30 days for a probation report.

Last April 17, Busch's car collided with one driven by Carrie Sinnot, 19, of suburban Carmichael, who received minor injuries. Police said Busch's blood alcohol level was 0.20 percent.