NANTUCKET (CBS) — The family of a Nantucket woman is now turning to a private investigator to solve her disappearance.

Trudy Hall vanished last July. Both investigators and Hall’s family believe she was murdered.

Blood and bullet casings were found in the car Hall had rented in Hyannis.

WBZ NewsRadio 1030′s Lana Jones reports.

Hall’s mother, Vivian Walker, tells the Cape Cod Times that the investigator she’s hired is working closely with police.

The family is also offering a $15,000 reward for information in the case.