On Tuesday, Dr. Conrad Murray pleaded not guilty to involuntary manslaughter in the death of Michael Jackson at Los Angeles Superior Court.
Prosecutors will try to prove that Michael's death was caused by gross negligence, PopEater reports. Conrad could face up to four years in prison if convicted for involuntary manslaughter.
His medical license has already been suspended, but he'll most likely never practice again if he's found guilty.
Conrad admitted to administering propofol and other sedatives to Michael since the legendary singer reportedly was a chronic insomniac.
During a six-day preliminary, a coroner testified that Michael died of a propofol overdose in combination with other drugs.
"He abandoned his patient and didn't resuscitate appropriately," Dr. Richard Ruffalo, an anesthesiologist testified for prosecution. "That's the key."
According to legal experts, Conrad has a big fight ahead of him.
Steve Cron, a criminal defense attorney, told the Associated Press that Conrad's defense team will need to answer why he delayed calling 911 and failed to tell medics he administered propofol.
"All these are little bits of evidence," Cron said. "None of them alone caused his death, but all together they may have."
Katherine and Randy Jackson attended the arraignment hearing on Tuesday.