Dr. Conrad Murray, the man convicted of involuntary manslaughter in the death of Michael Jackson, will likely serve only half of his four-year jail sentence due to a recent change in California law that allows non-violent felony offenders to serve their time in county jail instead of state prison.

Officials from the Los Angeles Sheriff’s Department said the cardiologist, who was convicted of involuntary manslaughter, would more than likely be released in two years due to factors such as jail overcrowding.

District Attorney Steve Cooley said he was considering asking Judge Michael Pastor to modify the sentence so Murray’s crime could be reclassified as a serious felony, which would then send Murray into the state prison system, where he would serve the entire four years of his sentence.

“This is going to be a real test of our criminal justice system to see if it’s meaningful at all,” Cooley said at a news conference after the sentencing.

Judge Pastor acknowledged he had no control of how much of the four year sentence he imposed the doctor would actually serve, saying it was out of his hands due to California law.

Pastor did, however, rip into Murray, calling his treatment of Jackson a “cycle of horrible medicine” and “medicine madness.”

Murray, 58, treated Jackson like a “medical experiment,” the judge said, which factored into his decision to hand down the maximum sentence.

“Four years is not enough for someone’s life,” Katherine Jackson, the singer’s mother, said after sentencing. “It won’t bring him back, but at least he got the maximum.”

Jermaine Jackson said he would miss playing music with his brother Michael and being a family.

“One hundred years is not enough,” he said.