Christine Abdellah Mustafa, 34, was last seen in Phoenix on May 10, 2017, after leaving her shift at a Walgreens pharmacy. Her family reported her missing the next day when she failed to show up; a welfare check found her purse with wallet and credit cards on the bathroom floor and her cellphone submerged in water. Her Nissan Cube remained in the driveway of the home she shared with her live-in boyfriend, Robert John Interval Jr., and their infant daughter.

Investigators focused on Interval after family members said Christine feared him and had been planning to leave with their child. On the day she vanished he allegedly called her at work, accused her of cheating and threatened her life; he later told police she had walked to work because of a flat tire, but officers found the tires intact. Interval posted Christine’s car, a bed and a mattress for sale the same day she was reported missing. Possible bloodstaining and Luminol-positive areas were found in the residence; her body has never been recovered despite extensive searches, including a three-month landfill search in Buckeye.

Interval was arrested and tried; in April 2019 a jury convicted him of second-degree murder and he received a 25-year sentence. Christine’s family, including her two daughters, still have no answers about where her remains are. If anyone has information about Christine’s disappearance or knows where she might be, please come forward.