Zamora's friend, Tanya Nelson, 45, was convicted in February for the killings and could be sentenced to death later in March.
Prosecutors argued Nelson blamed Smith for giving a bad fortune and was so outraged she travelled from North Carolina to Orange County to kill her.
Prosecutors say Nelson was upset at losing a lover and Smith could not grant her wish to reunite with him.
After the slayings, Nelson stole Smith's expensive jewelry and went on a $75,000 shopping spree, using her credit cards.
Prosecutors say Nelson left a paper trail with purchases from Orange County to Georgia and North Carolina.
Authorities caught up with Nelson when she bought airline tickets with the stolen credit cards and used the victim's names for tickets for herself and her children.
Police watched Nelson at the airport and followed her as the family got on a plane to Orange County, where they were arrested.