Jury begins considering fate of Michael Jackson doctor Conrad Murray

(CBS/AP) LOS ANGELES - Jurors will begin deliberations Friday in the involuntary manslaughter case against Michael Jackson's personal doctor.

Pictures: Who's who in the trial of Dr. Conrad Murray
Pictures: Michael Jackson's Doctor Trial
Video: Dr. Conrad Murray manslaughter trial begins

It will be the first day that the seven-man, five-woman panel will consider the evidence against Dr. Conrad Murray, who is accused of causing Jackson's June 2009 death.

The jury heard Thursday from a prosecutor who described Murray as an incompetent, opportunistic doctor who was giving Jackson the powerful anesthetic propofol as a sleep aid.

The defense attorney countered that Jackson was to blame for his own death and Murray agreed to be his personal physician but was unaware of the singer's drug dependency issues.

Any verdict the jury reaches must be unanimous. If convicted, Murray could be sentenced to up to four years behind bars and will lose his medical license.

Complete coverage of the Conrad Murray - Michael Jackson case on CBS News