The doctor convicted of killing Michael Jackson was released from jail Monday after serving nearly two years of a four-year sentence.

Conrad Murray was released from a downtown Los Angeles jail at 12:01 a.m., according to the sheriff's office. A change in California law allowed his incarceration time to be significantly cut down.

The former cardiologist was convicted in 2011 of causing Jackson's death in June 2009 by providing the superstar with an overdose of the powerful anesthetic Propofol as a sleep aid. Jackson was in the midst of preparations for a series of comeback concerts and Murray was serving as his personal physician.