Hepzibah Smith

A very old, very rich witch who collected magical antiques. Tom Riddle kills her for Helga Hufflepuff's, a "small golden cup with two finely wrought handles," and the heavy gold Slytherin locket that Tom's mother sold at Borgin and Burkes. Tom Riddle was never suspected; he made Hepzibah's house-elf Hokey confess to the crime