Former Playboy model Anna Nicole Smith was "obsessed" with pills and was helped in taking drugs by her lawyer-boyfriend in the weeks before her death, her bodyguard told a court.

A Los Angeles prosecutor claimed today two doctors prescribed massive amounts of drugs to Anna Nicole Smith even though they were warned she was addicted to painkillers.

Anna Nicole Smith was addicted to prescription drugs and her psychiatrist should have known it, an expert witness told a Los Angeles court.

Anna Nicole Smith’s lawyer-turned-boyfriend and two doctors denied have conspiring to provide thousands of prescription pills to the former model before her overdose death two years ago.