A 45-year-old Baker man with what his attorney described as a “sickness” was sentenced to 141/2 years in state prison Wednesday for his sixth DWI conviction since 2000.

Michael Scott Oneill’s blood-alcohol level was 0.152 percent when he was arrested on March 6, 2014. A blood-alcohol content of 0.08 percent or higher is considered presumptive evidence of drunken driving in Louisiana.

Oneill pleaded guilty in April to fourth-offense DWI — the highest grade of DWI offenses.

East Baton Rouge Parish Assistant District Attorney Chris Hester said Oneill’s prior DWI convictions were in 2000, 2001, 2007 and 2010. He had two such convictions in 2007.

Oneill served about a year behind bars on the 2010 conviction in Concordia Parish, said his attorney, Felix “Andy” DeJean.

“It shows how alcoholism is a disease. It’s a sickness,” DeJean said of Oneill’s multiple DWI convictions.

Hester said Oneill was on probation from his 2010 conviction at the time of his 2014 arrest.

DeJean described Oneill as a good man with a lot of potential and said he hopes Oneill can lead a productive life once released from prison.

DeJean called it “very fortunate” that Oneill’s drunken driving did not harm any other motorists or pedestrians.

State District Judge Lou Daniel ordered Oneill to serve his prison time without benefit of probation, parole or suspension of sentence.