What might be the sentence of Doctor Conrad if he is found guilty?

Court officials in Los Angeles say the jury in the trial of Michael Jackson’s doctor on charges of involuntary manslaughter has reached a verdict. Doctor Conrad Murray has been on trial for the past six weeks, accused over the death of Jackson in 2009. Peter Bowes is awaiting the verdict in California.
    The jury reached its verdict on the second day of deliberations. (6) Doctor Conrad Murray faces up to four years in jail if he’s found guilty of involuntary manslaughter. He’s been accused of giving Michael Jackson a lethal dose of the powerful anesthetic, propofol. The decision of the seven men and five women will be read in open court and televised around the world.
                                                                    BBC News