On day six of the Conrad Murray trial, Murray's girlfriend testifies Michael Jackson's former doctor had the powerful anesthetic propofol sent to her home.<br/> Nicole Alvarez - lived with Murray in the spring of 2009 while he was caring for Jackson. She said she received packages from a pharmacy in Las Vegas, but did not know what they contained.<br/> SOUNDBITE: Prosecutor off camera asking:<br/> "Do you recognize this FedEx receipt dated February 8, 2009. It also has your address and your name and Conrad Murray's?"<br/> SOUNDBITE: Witness Nicole Alvarez<br/> "Yes."<br/> Last week, prosecutors told jurors Murray received 255 vials of propofol - or more than 4 gallons - of the powerful substance at Alvarez's apartment.<br/> On Tuesday, Tim Lopez - the former owner of Applied Pharmacy in Las Vegas - testified he sent propofol to the girlfriend's apartment - after Murray told him it was the address for his California medical office.<br/> Authorities have said Murray - who had practices in Texas and Nevada - did not have a medical office in California.<br/> The prosecution also called to the stand three other women - who either spoke on the phone with Murray or texted him on the day Jackson died.<br/> Murray is on trial for the involuntary manslaughter of the late singer - who died after receiving a lethal dose of propofol.<br/> Murray admits administering the drug as sleep aid, but denies responsibility for Jackson's death.<br/> Murray faces up to four years in prison if convicted.<br/> Sarah Irwin, Reuters.